| ⓘ Acanthite Formula: Ag2S Description: Also occurs with unspecified arsenates. |
| ⓘ Actinolite Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 Localities: Katz Soapstone prospect (Katz Quarry), Ritter Ranch, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USAUnnamed Talc prospect, Head of Mint Canyon, Mint Canyon, Mint Canyon [town], Los Angeles County, California, USAUnnamed Talc occurrence, Sierra Pelona [ridge], Ritter Ranch, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USAPotts Valley, Santa Catalina Island, Los Angeles County, California, USALittle Harbor, Santa Catalina Island, Los Angeles County, California, USA Description: Occurs as crystals up to 5 cm. |
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ Albite var. Andesine Formula: (Na,Ca)[Al(Si,Al)Si2O8] Localities: Soledad Canyon - Sand Canyon area, Santa Clarita, Santa Clarita Valley, Los Angeles County, California, USAThree Pines Mine, Los Angeles County, California, USAMonte Cristo Mine (West Vein lease), Monte Cristo Canyon, Acton, Acton District, Los Angeles County, California, USA Description: Euhedral crystals to 90 cm in a norite-anorthosite complex. |
| ⓘ Albite var. Oligoclase Formula: (Na,Ca)[Al(Si,Al)Si2O8] |
| ⓘ Albite var. Peristerite Formula: Na(AlSi3O8) |
| ⓘ Allanite-(Ce) Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) Habit: Platy Description: Occurs as small plates in a pegmatite. |
| ⓘ 'Allanite Group' Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) Description: Abundant rough tabular crystals and grains to 2-3 inches (5.0 to 7.5 cm) in a pegmatite. |
| ⓘ Almandine Formula: Fe2+3Al2(SiO4)3 Description: Occurs as crystals to 4 inches (10 cm) diameter in a biotite-chlorite schist. |
| ⓘ 'Alunite Group' Formula: A0.5-1 B3[SO4]2(OH)6 |
| ⓘ 'Amphibole Supergroup' Formula: AB2C5(T8O22)W2 |
| ⓘ Analcime Formula: Na(AlSi2O6) · H2O |
| ⓘ Andalusite Formula: Al2(SiO4)O Localities: Andalusite occurrence, Nichols Canyon, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USAChiastolite occurrence, Coldwater & Franklin Canyon Roads junction, Los Angeles County, California, USAFranklin Canyon, Los Angeles County, California, USAColdwater Canyon Chiastolite locality, End of La Altura Road roadcut, Coldwater Canyon, Beverly Hills, Los Angeles County, California, USA |
| ⓘ Andalusite var. Chiastolite Formula: Al2(SiO4)O Localities: Coldwater Canyon Chiastolite locality, End of La Altura Road roadcut, Coldwater Canyon, Beverly Hills, Los Angeles County, California, USAAndalusite occurrence, Nichols Canyon, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USAChiastolite occurrence, Coldwater & Franklin Canyon Roads junction, Los Angeles County, California, USAFranklin Canyon, Los Angeles County, California, USA Description: Occurs as crystals in Santa Monica "slate."Occurs as crystals to 8 cm long and 1 cm diameter in slate. |
| ⓘ Annabergite Formula: Ni3(AsO4)2 · 8H2O Localities: Pacoima Canyon, Los Angeles County, California, USAKelsey Mine, San Gabriel Canyon, Los Angeles County, California, USAOre Hill Mine, Pacoima Canyon, Los Angeles County, California, USA |
| ⓘ Anorthite Formula: Ca(Al2Si2O8) Description: Euhedral crystals altering to Saussurite. |
| ⓘ Anorthite var. Labradorite Formula: (Ca,Na)[Al(Al,Si)Si2O8] Description: Phenocrysts to 9mm in volcanics which exhibit convolute zoning. |
| ⓘ Anthophyllite Formula: ◻Mg2Mg5(Si8O22)(OH)2 |
| ⓘ Antigorite Formula: Mg3(Si2O5)(OH)4 Localities: Unnamed Asbestos occurrence, Unnamed ridge, Poteet Quarry area, Green Valley, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USABuffalo Springs Weather Station vicinity, Santa Catalina Island, Los Angeles County, California, USA |
| ⓘ 'Apatite' Formula: Ca5(PO4)3A Localities: Reported from at least 6 localities in this region. Description: Occurs as small euhedral crystals. |
| ⓘ 'Apophyllite Group' Formula: AB4[Si8O20]X · 8H2O Localities: Cold Creek Canyon, Los Angeles County, California, USACanwood Street site, Agoura Hills, Los Angeles County, California, USABrush Canyon Quarry (Pacific Electric Quarry; Neuerberg locality 2), Brush Canyon, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USA |
| ⓘ Aragonite Formula: CaCO3 Localities: Reported from at least 8 localities in this region. Habit: Prismatic Description: Occurs as prismatic crystals on fractures in basalt with associated species.Occurs on fractures in basalt. |
| ⓘ Arsenolite Formula: As2O3 |
| ⓘ Arsenopyrite Formula: FeAsS Localities: Lang Mine, Tick Canyon Borate deposit, Tick Canyon, Lang, Los Angeles County, California, USABlack Jack Mine (Renton Mine; Renton vein), Black Jack Mountain, Avalon, Santa Catalina Island, Los Angeles County, California, USA |
ⓘ 'Asbestos'Localities: Palos Verdes Peninsula, Los Angeles County, California, USAPalos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USALang Mine, Tick Canyon Borate deposit, Tick Canyon, Lang, Los Angeles County, California, USA |
ⓘ 'Asbestos var. Mountain Leather'Localities: Lang Mine, Tick Canyon Borate deposit, Tick Canyon, Lang, Los Angeles County, California, USAPalos Verdes Peninsula, Los Angeles County, California, USAPalos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USA |
| ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ Autunite Formula: Ca(UO2)2(PO4)2 · 10-12H2O Description: Occurs as fracture coatings with other, unspecified, secondary U minerals. |
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 Localities: Reported from at least 6 localities in this region. |
ⓘ 'Barkevikite'Description: Discredited, see amphibole |
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Beidellite Formula: (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O Localities: Western Graphite Mine (Western Graphite Company claim), Elizabeth Lake Canyon, Lake Hughes, Los Angeles County, California, USAUnnamed Graphite-Sillimanite deposit, Upper Elizabeth Lake Canyon, Elizabeth Lake Canyon, Castaic, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USA Description: Occurs as patches and fracture fillings in feldspar. |
| ⓘ Beryl Formula: Be3Al2(Si6O18) Colour: Greenish white Description: Occurs as small pale crystals. |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 Localities: Reported from at least 7 localities in this region. Description: Occurs as crystals up to 20 cm diameter in anorthosite dikes. |
| ⓘ Bismutite Formula: (BiO)2CO3 Colour: White Description: Occurs as earthy material on California Division of Mines and Geology specimen #16343. |
| ⓘ 'Bloodstone' Formula: SiO2 |
| ⓘ Borax Formula: Na2(B4O5)(OH)4 · 8H2O |
| ⓘ Bornite Formula: Cu5FeS4 Localities: Emma Mine, Parker Mountain, Acton, Acton Mining District, Los Angeles County, California, USAKing of the West property, Antelope Valley, Acton, Acton Mining District, Los Angeles County, California, USAWinter Creek Mine (Winter group; Winter Creek Mine group; Winter Creek prospect), Santa Anita Creek, Santa Anita Canyon, Sierra Madre, Los Angeles County, California, USAPacoima Canyon, Los Angeles County, California, USA |
| ⓘ Braunite Formula: Mn2+Mn3+6(SiO4)O8 Localities: Unspecified Mn occurrence, George Canyon (George F. Canyon), Palos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USALos Angeles County, California, USAPalos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USA Description: Occurs as crystals which are usually less than 0.5 mm diameter in quartzite pebbles, cobbles and boulders on the bed of the usually dry channel in the canyon. |
| ⓘ Brochantite Formula: Cu4(SO4)(OH)6 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ 'Calcium Amphibole Subgroup' Formula: AnCa2(C2+5-mC3+m)(Si8-(n+m)Al(n+m))W2 |
| ⓘ 'Calcium Amphibole Subgroup var. Hornblende' Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| ⓘ Celadonite Formula: K(MgFe3+◻)(Si4O10)(OH)2 |
| ⓘ Celestine Formula: SrSO4 Localities: Lang Mine, Tick Canyon Borate deposit, Tick Canyon, Lang, Los Angeles County, California, USACalabasas Highlands, Calabasas, Los Angeles County, California, USA Description: Occurs as crusts of finely crystalline coatings on bakerite in shale. |
| ⓘ Cerussite Formula: PbCO3 |
ⓘ 'Chabazite'Localities: Lang Mine, Tick Canyon Borate deposit, Tick Canyon, Lang, Los Angeles County, California, USACold Creek Canyon, Los Angeles County, California, USACanwood Street site, Agoura Hills, Los Angeles County, California, USA |
| ⓘ Chalcanthite Formula: CuSO4 · 5H2O Description: Occurs as efflorescences on mine walls. |
| ⓘ Chalcocite Formula: Cu2S Localities: Free Cuba Mine, Soledad Canyon, Acton, Acton District, Los Angeles County, California, USAMaria Mine (Maris Mine [?]), Soledad Canyon, Santa Clarita, Santa Clarita Valley, Los Angeles County, California, USAEmma Mine, Parker Mountain, Acton, Acton Mining District, Los Angeles County, California, USA |
| ⓘ Chalcopyrite Formula: CuFeS2 |
ⓘ 'Chlorite Group'Localities: Reported from at least 9 localities in this region. |
| ⓘ Chromite Formula: Fe2+Cr3+2O4 Description: Occurs in seerpentine. (NOTE: Probably magnesiochromite based on occurrence in a high Mg environment.) |
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| ⓘ Chrysotile Formula: Mg3(Si2O5)(OH)4 Description: Occurs in a serpentine sill in veins up to 10 cm wide. |
| ⓘ Cinnabar Formula: HgS Colour: Vivid red Description: Previously believed to be "Minium" as inclusions within Fluorite crystals but has been shown to be cinnabar. |
| ⓘ 'Clay minerals' |
| ⓘ Clinochlore ? Formula: Mg5Al(AlSi3O10)(OH)8 Description: Probable clinochlore. |
| ⓘ Clinoptilolite-K Formula: K6(Si30Al6)O72 · 20H2O |
| ⓘ 'Clinoptilolite Subgroup' Formula: (Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O |
| ⓘ Clinozoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) Localities: Santa Catalina Island, Los Angeles County, California, USABouquet Canyon highway, Bouquet Reservoir, Bouquet Canyon, Green Valley, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USADesert Stone Quarry No. 1 (Jones Quarry), Green Valley, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USANorth Side of Sierra Pelona Valley, Sierra Pelona Valley, Agua Dulce, Los Angeles County, California, USASan Francisquito Canyon reservoir, San Francisquito Canyon, Los Angeles County, California, USA |
| ⓘ Colemanite Formula: Ca[B3O4(OH)3] · H2O |
| ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series' Description: Occurs as small crystals in a pegmatite. |
| ⓘ 'Copper Stain' |
| ⓘ Cordierite Formula: Mg2Al4Si5O18 Localities: Coldwater Canyon Chiastolite locality, End of La Altura Road roadcut, Coldwater Canyon, Beverly Hills, Los Angeles County, California, USAHollywood Hills, Los Angeles, Los Angeles County, California, USABouquet Canyon Quarry (Pyle Quarry), Bouquet Canyon, Green Valley, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USACordierite occurrence, Sepulveda Canyon, Los Angeles County, California, USAChiastolite occurrence, Coldwater & Franklin Canyon Roads junction, Los Angeles County, California, USA Description: A common constituent of the "spotted slates" of the Santa Monica Mountains. Occurs as megascopic subhedral crystals. |
| ⓘ Corundum Formula: Al2O3 Localities: West of the Old Soapstone Quarry, Santa Catalina Island, Los Angeles County, California, USAAngeles Crest highway roadcut (2), Angeles Crest highway, Los Angeles County, California, USASan Francisquito Pass, Los Angeles County, California, USACascade Canyon, Los Angeles County, California, USASan Antonio Canyon Corundum, Claremont, Los Angeles County, California, USA |
| ⓘ Corundum var. Sapphire Formula: Al2O3 |
| ⓘ Covellite Formula: CuS |
| ⓘ Cristobalite Formula: SiO2 Localities: Reported from at least 7 localities in this region. |
ⓘ 'Crossite'Localities: North of Orizaba Peak (Mount Orizaba), Escondido Canyon, Santa Catalina Island, Los Angeles County, California, USAPoint Fermin, San Pedro, Los Angeles County, California, USAMalaga Cove, Palos Verdes Estates, Los Angeles County, California, USAMouth of Middle Ranch Canyon area, Santa Catalina Island, Los Angeles County, California, USA |
| ⓘ Cuprite Formula: Cu2O Localities: Free Cuba Mine, Soledad Canyon, Acton, Acton District, Los Angeles County, California, USAPalm Mine (Palm Development Company prospect), Littlerock, Los Angeles County, California, USA |
ⓘ 'Dachiardite Subgroup'Localities: Kanan Road Quarry, Agoura Hills, Los Angeles County, California, USACanwood Mall excavation dump, Agoura Hills, Los Angeles County, California, USACanwood Street site, Agoura Hills, Los Angeles County, California, USACanwood St construction site 2014, Agoura Hills, Los Angeles County, California, USA |
| ✪ Datolite Formula: CaB(SiO4)(OH) Description: Occurs as a finely crystalline crust on cavities in shale; as well-formed minute crystals of two distinct crystal habits and associated with howlite masses, and occasionally coated by celestine crystals. |
| ✪ Datolite var. Bakerite Formula: Ca4(H5B5Si3O20) Description: Occurs as a finely crystalline crust on cavities in shale; as well-formed minute crystals of two distinct crystal habits and associated with howlite masses, and occasionally coated by celestine crystals. |
| ⓘ Diopside Formula: CaMgSi2O6 |
| ⓘ Dolomite Formula: CaMg(CO3)2 |
| ⓘ Dravite Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ Dumortierite Formula: Al(Al2O)(Al2O)2(SiO4)3(BO3) |
| ⓘ Enstatite Formula: Mg2Si2O6 |
| ⓘ Enstatite var. Bronzite Formula: (Mg,Fe2+)2[SiO3]2 |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) Localities: Reported from at least 6 localities in this region. |
| ⓘ Epsomite Formula: MgSO4 · 7H2O Localities: Reported from at least 8 localities in this region. |
| ⓘ 'Erionite Subgroup' Formula: M2[Al4Si14O36] · 15H2O |
| ⓘ Erythrite Formula: Co3(AsO4)2 · 8H2O Localities: Kelsey Mine, San Gabriel Canyon, Los Angeles County, California, USAO.K. Mine, San Gabriel Canyon, Los Angeles County, California, USAPacoima Canyon, Los Angeles County, California, USA Description: Occurs as coatings. |
| ⓘ Euxenite-(Y) Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 Habit: Platy Colour: Olive-green Description: Occurs as aggregates of plates to 5 mm diameter in pegmatite. |
ⓘ 'Fayalite-Forsterite Series'Localities: Neenach meteorite, Neenach District, Antelope Valley, Los Angeles County, California, USASouth of the Sterling Mine, Tick Canyon, Lang, Los Angeles County, California, USALittlerock meteorite, Littlerock, Los Angeles County, California, USA |
| ⓘ 'Feldspar Group' |
| ⓘ 'Feldspar Group var. Perthite' |
| ⓘ Ferrierite-K Formula: (K,Na)5(Si31Al5)O72 · 18H2O Localities: Canwood St construction site 2014, Agoura Hills, Los Angeles County, California, USAKanan Road roadcut No. 1 South side, Agoura Hills, Los Angeles County, California, USAKanan Road roadcut No. 1 North side, Agoura Hills, Los Angeles County, California, USAKanan Road Quarry, Agoura Hills, Los Angeles County, California, USACanwood Street site, Agoura Hills, Los Angeles County, California, USA Habit: groupings of hemispheres up to 8mm,
flat rosettes up to 7mm in diameter Colour: clear, white, light grey Fluorescence: strong blue SW UV fluorescence Description: groupings of white balls up to 8mm,
flat crystal rosettes up to 7mm in diameter |
| ⓘ Ferrierite-Mg Formula: [Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O |
ⓘ 'Ferrierite Subgroup'Localities: Kanan Road roadcut No. 1 South side, Agoura Hills, Los Angeles County, California, USALos Angeles County, California, USACanwood Mall excavation dump, Agoura Hills, Los Angeles County, California, USAKanan Road roadcut No. 3, Agoura Hills, Los Angeles County, California, USA |
ⓘ FerrosaponiteFormula: Ca0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2O Description: Note: The minerals ferrosaponite and ferroan saponite have frequently been mentioned from this locality, but the mineral appears to be a ferrian saponite with about 79% end-member saponite. See Ross (1946). |
| ⓘ Fluorapatite Formula: Ca5(PO4)3F |
| ⓘ Fluorite Formula: CaF2 Localities: Felix Mine, Azusa (Dalton), Los Angeles County, California, USABlack Jack Mine (Renton Mine; Renton vein), Black Jack Mountain, Avalon, Santa Catalina Island, Los Angeles County, California, USANeuerberg locality 20, Higgins Canyon, Los Angeles County, California, USA Habit: Octahedral Colour: Pastel green, purple Fluorescence: Very bright blue (LW); less so (SW). Description: Fine specimens of crystals. |
| ⓘ Galena Formula: PbS Localities: Reported from at least 6 localities in this region. Description: Occurs associated with other sulphides. |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 Localities: Reported from at least 7 localities in this region. |
| ⓘ 'Glauconite' Formula: K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2 Description: Occurs in an unconsolidated shell marl. |
| ⓘ Glaucophane Formula: ◻Na2(Mg3Al2)Si8O22(OH)2 Localities: Malaga Cove, Palos Verdes Estates, Los Angeles County, California, USAConnolly Pacific Quarry, Santa Catalina Island, Los Angeles County, California, USALittle Harbor, Santa Catalina Island, Los Angeles County, California, USAPoint Fermin, San Pedro, Los Angeles County, California, USA |
| ⓘ Goethite Formula: Fe3+O(OH) Localities: Reported from at least 6 localities in this region. |
| ⓘ Graphite Formula: C Description: Occurs along fractures in quartz and granite gneiss. |
| ⓘ Grossular Formula: Ca3Al2(SiO4)3 Localities: Haskins Dolomite Mine (Haskins group), Limerock Canyon, Kagel Canyon, Los Angeles County, California, USAHughes Lake No. 1 locality (Hughes Lake No. 1 Mine), Hughes Lake, Lake Hughes, Los Angeles County, California, USASoledad Canyon, Santa Clarita, Santa Clarita Valley, Los Angeles County, California, USA Description: Occurs as crystals. |
| ⓘ Grossular var. Hessonite Formula: Ca3Al2(SiO4)3 |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Gypsum var. Alabaster Formula: CaSO4 · 2H2O |
| ⓘ Gypsum var. Satin Spar Gypsum Formula: CaSO4 · 2H2O Localities: Mint Canyon deposit (Lang; Los Angeles Gypsum), Mint Canyon, Mint Canyon [town], Los Angeles County, California, USACharlie Canyon deposit (Charlie Canyon Gypsum deposit; San Francisquito Canyon deposit), Castaic, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USABluff Cove, Palos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USA |
| ⓘ Gypsum var. Selenite Formula: CaSO4 · 2H2O Localities: Unnamed Gypsum occurrence, Encino Reservoir area, Encino, Los Angeles County, California, USAPoint Fermin, San Pedro, Los Angeles County, California, USASunland, Los Angeles, Los Angeles County, California, USACalabasas Highlands, Calabasas, Los Angeles County, California, USA Description: Occurs as crystals to 5 cm diameter in a white clay bed of the lower shale member of the Modelo Formation. |
| ⓘ Gyrolite Formula: NaCa16Si23AlO60(OH)8 · 14H2O |
| ⓘ Halloysite Formula: Al2Si2O5(OH)4 · n(H2O) Description: Occurs in the wall rocks of quartz veins. |
| ⓘ Halotrichite Formula: Fe2+Al2(SO4)4 · 22H2O Description: Occurs in altered pyritiferous boulders of a conglomerate. |
| ⓘ Haüyne Formula: Na3Ca(Si3Al3)O12(SO4) Description: Occurs as lapis lazuli in boulders. |
| ⓘ Hematite Formula: Fe2O3 Localities: Tick Canyon, Lang, Los Angeles County, California, USANeuerberg locality 9, Cahuenga Boulevard roadcut, Cahuenga Pass, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USACanwood Street site, Agoura Hills, Los Angeles County, California, USALobo Canyon, Agoura Hills, Los Angeles County, California, USA |
| ⓘ 'Heulandite Subgroup' Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O Localities: Reported from at least 8 localities in this region. |
| ⓘ Hisingerite Formula: Fe3+2(Si2O5)(OH)4 · 2H2O |
| ⓘ Hollandite Formula: Ba(Mn4+6Mn3+2)O16 |
| ⓘ 'Hornblende Root Name Group' Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2 |
| ⓘ Howlite Formula: Ca2B5SiO9(OH)5 Colour: White Description: Occurs as tabular micro-crystals, also forming rosettes; cauliflower-like masses/nodules. |
| ⓘ 'Hypersthene' Formula: (Mg,Fe)SiO3 |
| ⓘ Ice Formula: H2O |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
| ⓘ Jarosite Formula: KFe3+3(SO4)2(OH)6 Localities: Reported from at least 7 localities in this region. |
| ⓘ Kalinite Formula: KAl(SO4)2 · 11H2O |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ 'K Feldspar' |
| ⓘ 'K Feldspar var. Adularia' Formula: KAlSi3O8 |
| ⓘ Kyanite Formula: Al2(SiO4)O |
| ⓘ Laumontite Formula: CaAl2Si4O12 · 4H2O Habit: Acicular Description: Occurs in seams of conglomerates. |
| ⓘ Lawsonite Formula: CaAl2(Si2O7)(OH)2 · H2O Localities: North of Orizaba Peak (Mount Orizaba), Escondido Canyon, Santa Catalina Island, Los Angeles County, California, USAPoint Fermin, San Pedro, Los Angeles County, California, USASanta Catalina Island, Los Angeles County, California, USAUnspecified Mn occurrence, George Canyon (George F. Canyon), Palos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USAWestern Tip of Santa Catalina Island, Santa Catalina Island, Los Angeles County, California, USA |
| ⓘ Lazurite Formula: Na7Ca(Al6Si6O24)(SO4)(S3) · H2O Description: Occurs as lapis lazuli in boulders. |
| ⓘ 'Lévyne' |
ⓘ 'Limonite'Localities: Archstone, Agoura Hills, Los Angeles County, California, USAFelix Mine, Azusa (Dalton), Los Angeles County, California, USABluff Cove, Palos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USA |
| ⓘ Magnesite Formula: MgCO3 Localities: Prince Mines, Green Valley, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USAUnnamed Magnesite occurrence, Green Valley, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USASanta Catalina airport, Santa Catalina Island, Los Angeles County, California, USABuffalo Springs Weather Station vicinity, Santa Catalina Island, Los Angeles County, California, USA |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Magnetite var. Titanium-bearing Magnetite Formula: Fe2+(Fe3+,Ti)2O4 Localities: Soledad Canyon, Santa Clarita, Santa Clarita Valley, Los Angeles County, California, USASouthwest of the Monte Cristo Mine, Monte Cristo Canyon, Acton, Acton District, Los Angeles County, California, USA Description: May be ilmenite. |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 Localities: Reported from at least 9 localities in this region. |
| ⓘ 'Manganese Oxides' |
| ⓘ 'Manganese Oxides var. Manganese Dendrites' |
| ⓘ Marcasite Formula: FeS2 Localities: Reported from at least 6 localities in this region. |
| ⓘ Marialite Formula: Na4Al3Si9O24Cl Description: Crystals occur along a marble-quartz diorite contact. |
| ⓘ Melanophlogite Formula: 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| ⓘ Melanterite Formula: Fe2+(H2O)6(SO4) · H2O Localities: Indicator Mine (Denver Indicator Mine), Denver group (Denver Mining and Milling Company; Ore Hill group; Red Ledge Mine; Fenner Mine; Chance Mine; Pacoima Canyon Mine), Kagel Canyon, Los Angeles County, California, USACahuenga Peak, Los Angeles County, California, USANeuerberg Locality 10, Los Angeles County, California, USAOre Hill Mine, Pacoima Canyon, Los Angeles County, California, USAPacoima Canyon, Los Angeles County, California, USA |
| ⓘ Microcline Formula: K(AlSi3O8) Localities: Loomis Mine (Loomis prospect), North Fork Alder Creek, Granite Mountain, Acton, Acton District, Los Angeles County, California, USAPacoima Canyon pegmatite locality (Pacoima Canyon Allanite pegmatite; Allanite locality), Pacoima Canyon, Los Angeles County, California, USABig Chief Mine, Adams Canyon, Neenach, Los Angeles County, California, USASoutheast of Pearblossom, Pearblossom, Los Angeles County, California, USAFalcon Mine, Granite Mountain, Acton, Acton District, Los Angeles County, California, USA Description: Occurs as crystals in granodiorite. |
ⓘ MiniumFormula: Pb3O4 |
| ⓘ Moganite Formula: SiO2 |
| ⓘ Molybdenite Formula: MoS2 |
| ⓘ 'Monazite Group' Formula: REE(PO4) |
| ⓘ Montmorillonite Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O Description: Occurs in pegmatite as an apparent alteration product of feldspar. Waxy. |
| ⓘ Mordenite Formula: (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O Localities: Reported from at least 9 localities in this region. |
| ⓘ Mottramite ? Formula: PbCu(VO4)(OH) |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Muscovite var. Fuchsite Formula: K(Al,Cr)3Si3O10(OH)2 |
| ⓘ Muscovite var. Mariposite Formula: K(Al,Cr)2(Al,Si)4O10(OH)2 Description: Occurs as nests and lenses in talc-sericite schists of the Sierra Pelona series. |
| ⓘ Muscovite var. Phengite Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 Description: Occurs as nests and lenses in talc-sericite schists of the Sierra Pelona series. |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Native Copper Formula: Cu Description: Occurs in quartz. |
| ⓘ Native Gold Formula: Au |
| ⓘ Native Iron Formula: Fe |
| ⓘ Native Iron var. Kamacite Formula: (Fe,Ni) |
| ⓘ Native Silver Formula: Ag Localities: Kelsey Mine, San Gabriel Canyon, Los Angeles County, California, USAMaria Mine (Maris Mine [?]), Soledad Canyon, Santa Clarita, Santa Clarita Valley, Los Angeles County, California, USAO.K. Mine, San Gabriel Canyon, Los Angeles County, California, USASilver King Mine, Bouquet Reservoir, Bouquet Canyon, Green Valley, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USA |
| ⓘ Native Sulphur Formula: S8 |
| ⓘ Natrojarosite Formula: NaFe3(SO4)2(OH)6 |
| ⓘ Natrolite Formula: Na2Al2Si3O10 · 2H2O Description: Occurs in cavities in basalt. |
| ⓘ Nontronite Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| ⓘ Offretite Formula: KCaMg(Si13Al5)O36 · 15H2O |
| ⓘ Omphacite Formula: (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6 |
| ⓘ Opal Formula: SiO2 · nH2O |
| ⓘ Orthoclase Formula: K(AlSi3O8) |
| ⓘ Palygorskite Formula: ◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O Description: Occurs in the Puente Formation in veins in outcrops throughout a 3 square mile area, as dry, leathery slabs, as vein filling material and as coatings on calcite crystals in vugs. |
| ⓘ Pectolite Formula: NaCa2Si3O8(OH) |
ⓘ 'Petroleum'Localities: Kanan Road roadcut No. 3, Agoura Hills, Los Angeles County, California, USAMalaga Cove, Palos Verdes Estates, Los Angeles County, California, USAKanan Road roadcut No. 1 South side, Agoura Hills, Los Angeles County, California, USAKanan Road roadcut No. 2, Agoura Hills, Los Angeles County, California, USA |
ⓘ 'Petroleum var. Bitumen'Localities: Reported from at least 9 localities in this region. |
| ⓘ Pharmacolite Formula: Ca(HAsO4) · 2H2O References: Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons. |
| ⓘ Phillipsite-Na Formula: (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O |
| ⓘ 'Phillipsite Subgroup' Formula: (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O |
| ⓘ Phlogopite Formula: KMg3(AlSi3O10)(OH)2 Localities: Big Pines No. 1 claim, Big Pines, Los Angeles County, California, USAHead of Lime Kiln Canyon, Lime Kiln Canyon, San Fernando, Los Angeles County, California, USAUnnamed Spinel occurrence, Table Mountain, Big Pines, Los Angeles County, California, USA Description: Occurs in limestone. |
| ⓘ Piemontite Formula: (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) Localities: North of Orizaba Peak (Mount Orizaba), Escondido Canyon, Santa Catalina Island, Los Angeles County, California, USABouquet Canyon-Texas Canyon junction area, Newhall, Los Angeles County, California, USAUnnamed Mn occurrence, Mine Gulch, Big Pines, Los Angeles County, California, USAUnnamed ravine, Prairie Fork, San Gabriel River, Big Pines, Mount Baldy District, Los Angeles County, California, USALos Angeles County, California, USA Description: Occurs in quartz schist. |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Localities: West of the Old Soapstone Quarry, Santa Catalina Island, Los Angeles County, California, USAGates Chemical Company Mine, Soledad Canyon, Russ, Los Angeles County, California, USALambert's Poultry Grits Mine, Soledad Canyon, Russ, Los Angeles County, California, USAStanley Alumina-Silicate deposit, Russ, Los Angeles County, California, USACascade Canyon, Los Angeles County, California, USA |
| ⓘ Posnjakite Formula: Cu4(SO4)(OH)6 · H2O Colour: pale blue Description: pale blue crystals, distinct color from brochantite |
| ⓘ Powellite Formula: Ca(MoO4) |
| ⓘ Prehnite Formula: Ca2Al2Si3O10(OH)2 Localities: Reported from at least 6 localities in this region. |
| ⓘ Priceite Formula: Ca2B5O7(OH)5 · H2O |
| ⓘ Probertite Formula: NaCa[B5O7(OH)4] · 3H2O Description: Occurs as compacted rosettes of rather coarse needles in borax ore. Lenticular aggregates of slender, radiating prisms to 15 mm x 5 mm. |
| ⓘ Pseudobrookite Formula: Fe3+2Ti4+O5 |
ⓘ 'Psilomelane'Localities: West of Palmdale, Palmdale, Los Angeles County, California, USAAmargosa group (Red Feather claim; Red Feather deposit; La Frentz; Macy; Black Brothers; Llewellyn Iron property), Ritter Ridge, Palmdale, Los Angeles County, California, USAPurple Sage group, Texas Canyon, Green Valley, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USA Description: Occurs as siliceous material. |
| ⓘ 'Pumpellyite Subgroup' Formula: Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrolusite Formula: Mn4+O2 |
| ⓘ Pyrope Formula: Mg3Al2(SiO4)3 Description: Richest in pyrope component of any garnet studied for California. |
| ⓘ Pyrrhotite Formula: Fe1-xS Localities: Pacoima Canyon, Los Angeles County, California, USAIndicator Mine (Denver Indicator Mine), Denver group (Denver Mining and Milling Company; Ore Hill group; Red Ledge Mine; Fenner Mine; Chance Mine; Pacoima Canyon Mine), Kagel Canyon, Los Angeles County, California, USAOre Hill Mine, Pacoima Canyon, Los Angeles County, California, USA |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Agate Formula: SiO2 Localities: Reported from at least 7 localities in this region. |
| ⓘ Quartz var. Amethyst Formula: SiO2 Localities: Escondido Canyon Road - Hubbard Road area, Agua Dulce, Antelope Valley, Los Angeles County, California, USAUnspecified Quartz occurrences, Interior of Santa Catalina Island, Santa Catalina Island, Los Angeles County, California, USA Description: Occurs as crystals. |
| ⓘ Quartz var. Blue Quartz Formula: SiO2 |
| ⓘ Quartz var. Chalcedony Formula: SiO2 Description: Large veins and faces of gorgeous botryoidal Chalcedony can be found in certain areas. |
| ⓘ Quartz var. Citrine Formula: SiO2 |
| ⓘ Quartz var. Fortification Agate Formula: SiO2 |
| ⓘ Quartz var. Plume Agate Formula: SiO2 |
| ⓘ Quartz var. Rock Crystal Formula: SiO2 Localities: Escondido Canyon Road - Hubbard Road area, Agua Dulce, Antelope Valley, Los Angeles County, California, USAUnnamed Roadcut, Palos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USA Description: Occurs as crystals. |
| ⓘ Quartz var. Smoky Quartz Formula: SiO2 |
| ⓘ Quartz var. Star Quartz Formula: SiO2 |
| ⓘ 'Quartz-beta' ? Formula: SiO2 |
| ⓘ Realgar Formula: As4S4 Description: Occurs as very thin films and crystals on fracture surfaces in massive colemanite. |
| ⓘ Rhodonite Formula: CaMn3Mn[Si5O15] Localities: Portal Ridge, Lancaster, Los Angeles County, California, USAAmargosa group (Red Feather claim; Red Feather deposit; La Frentz; Macy; Black Brothers; Llewellyn Iron property), Ritter Ridge, Palmdale, Los Angeles County, California, USAPurple Sage group, Texas Canyon, Green Valley, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USA |
| ⓘ Rutile Formula: TiO2 Localities: Old Soapstone Quarry, Santa Catalina Island, Los Angeles County, California, USACascade Canyon, Los Angeles County, California, USALos Angeles County, California, USAHead of Spring Canyon, Spring Canyon, Lang, Los Angeles County, California, USA Description: Microscopic crystals in brown hornblende gneiss. |
| ⓘ Salammoniac Formula: NH4Cl Colour: White Description: Occurs as crystalline incrustations in Monterey Shale. |
| ⓘ Sanidine Formula: K(AlSi3O8) Colour: White Description: Occurs as megascopic crystals in a rhyolite flow. |
| ⓘ Saponite Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O Localities: Reported from at least 8 localities in this region. |
| ⓘ Saponite var. Iron-bearing Saponite Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O Localities: Griffith Park, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USAUnspecified Saponite occurrence, Cahuenga Pass, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USA (more information)Griffithite Locality (South End of Cahuenga Pass), Cahuenga Pass, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USA (more information)Hollywood Bowl entrance area, Cahuenga Pass, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USA (more information)Brush Canyon Quarry (Pacific Electric Quarry; Neuerberg locality 2), Brush Canyon, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USA (more information) |
| ⓘ 'Saussurite' Colour: Green Description: Altering from labradorite crystals. |
| ⓘ 'Scapolite' |
| ⓘ Scheelite Formula: Ca(WO4) |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ Scorodite Formula: Fe3+AsO4 · 2H2O Description: Occurs as coatings on arsenopyrite veins. |
| ⓘ Sepiolite Formula: Mg4(Si6O15)(OH)2 · 6H2O Description: Occurs in veinlets of diatomite dredged from the ocean bottom. |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 Localities: Reported from at least 8 localities in this region. |
| ⓘ Siderite Formula: FeCO3 Localities: Pacoima Canyon, Los Angeles County, California, USAIndicator Mine (Denver Indicator Mine), Denver group (Denver Mining and Milling Company; Ore Hill group; Red Ledge Mine; Fenner Mine; Chance Mine; Pacoima Canyon Mine), Kagel Canyon, Los Angeles County, California, USAUnspecified Fe occurrence, Tujunga Canyon, Tujunga, Los Angeles County, California, USACanwood Street site, Agoura Hills, Los Angeles County, California, USAOre Hill Mine, Pacoima Canyon, Los Angeles County, California, USA |
| ⓘ 'Silica' |
| ⓘ Sillimanite Formula: Al2(SiO4)O Localities: Reported from at least 6 localities in this region. Description: Occurs in schists. |
| ⓘ Skutterudite Formula: CoAs3 |
| ⓘ 'Smectite Group' Formula: A0.3D2-3[T4O10]Z2 · nH2O |
| ⓘ Spadaite Formula: MgSiO2(OH)2 · H2O (?) |
| ⓘ Spessartine Formula: Mn2+3Al2(SiO4)3 |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ Spinel Formula: MgAl2O4 Localities: Head of Lime Kiln Canyon, Lime Kiln Canyon, San Fernando, Los Angeles County, California, USAUnnamed Spinel occurrence, Table Mountain, Big Pines, Los Angeles County, California, USA Colour: Gray-black Description: Occurs as grains to 2 mm in dolomite. |
| ⓘ Stibnite Formula: Sb2S3 Localities: Pacoima Canyon, Los Angeles County, California, USALang Mine, Tick Canyon Borate deposit, Tick Canyon, Lang, Los Angeles County, California, USASouth of Lancaster, Lancaster, Los Angeles County, California, USA Description: Occurs with Co-Ni ores. |
| ⓘ 'Stilbite Subgroup' Formula: M6-7[Al8-9Si27-28O72] · nH2O Localities: West of Acton, Acton, Acton Mining District, Los Angeles County, California, USAVincent cutoff area, Angeles Crest Highway, Los Angeles County, California, USANeuerberg locality 6 (Fire Road E of Coldwater Canyon), Coldwater Canyon area, Los Angeles County, California, USANeuerberg locality 9, Cahuenga Boulevard roadcut, Cahuenga Pass, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USA Description: Occurs as sheave-like aggregates and platy crystals to 8 cm long. |
| ⓘ Stilpnomelane Formula: K4Fe2+48[Si64Al8]O164(OH)52 · nH2O Description: Occurs up to 1 cm diameter in Pelona-type schist. |
| ⓘ Strontianite Formula: SrCO3 Description: Occurs as compact masses and slender needles in colemanite. |
| ⓘ Sursassite Formula: Mn2+2Al3(SiO4)(Si2O7)(OH)3 Localities: Unspecified Mn occurrence, George Canyon (George F. Canyon), Palos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USAPalos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USALos Angeles County, California, USA Habit: Fibrous, acicular Colour: Copper-red Description: Occurs as fibers up to 5 mm long associated with braunite; tufts and radial-fibrous masses in quartzite pebbles, cobbles and boulders. |
| ⓘ Talc Formula: Mg3Si4O10(OH)2 |
| ⓘ Talc var. Steatite Formula: Mg3(Si4O10)(OH)2 |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
| ⓘ Thénardite Formula: Na2SO4 |
| ⓘ Thomsonite-Ca Formula: NaCa2[Al5Si5O20] · 6H2O Localities: Palos Verdes beach cliffs, Palos Verdes Peninsula, Los Angeles County, California, USAGriffith Park, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USA |
ⓘ 'Thomsonite Subgroup'Localities: Cold Creek Canyon, Los Angeles County, California, USASir' Kegian gem beds, Escondido Canyon, Acton, Acton Mining District, Los Angeles County, California, USABrush Canyon Quarry (Pacific Electric Quarry; Neuerberg locality 2), Brush Canyon, Hollywood, Hollywood Hills, Los Angeles, Los Angeles County, California, USA |
| ⓘ Thorite Formula: Th(SiO4) Localities: Unnamed U-Th prospect, Fish Canyon, Castaic, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USAPacoima Canyon pegmatite locality (Pacoima Canyon Allanite pegmatite; Allanite locality), Pacoima Canyon, Los Angeles County, California, USAPacoima Canyon allanite pegmatite locality No. 2, Pacoima Canyon, Los Angeles County, California, USA Colour: Black Description: Occurs as grains in a silica-cemented feldspar breccia. The host rock is stained yellow and red and fluoresces yellow-green (SW UV). |
| ⓘ Thorite var. Uranothorite Formula: (Th,U)SiO4 Localities: Unnamed U-Th prospect, Fish Canyon, Castaic, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USAPacoima Canyon allanite pegmatite locality No. 2, Pacoima Canyon, Los Angeles County, California, USA Colour: Black Description: Occurs as grains in a silica-cemented feldspar breccia. The host rock is stained yellow and red and fluoresces yellow-green (SW UV). |
| ⓘ Tincalconite Formula: Na2(B4O7) · 5H2O |
| ⓘ Titanite Formula: CaTiO(SiO4) Localities: Reported from at least 6 localities in this region. Description: Occurs as crystals to 5 cm in gneiss. |
| ⓘ Todorokite Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O Localities: Unspecified Mn occurrence, George Canyon (George F. Canyon), Palos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USAPalos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USA Colour: Black, brownish black Description: Occurs on cleavage planes and as dull brownish-black coatings on quartzite pebbles. |
| ⓘ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z Colour: Black |
| ⓘ Tremolite Formula: ◻Ca2Mg5(Si8O22)(OH)2 Localities: Lang Mine, Tick Canyon Borate deposit, Tick Canyon, Lang, Los Angeles County, California, USAPalos Verdes Peninsula, Los Angeles County, California, USAPalos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USALivingston Quarry (Livingston Rock and Gravel Co. Quarry), Portuguese Bend area, Palos Verdes Hills, Palos Verdes Peninsula, Los Angeles County, California, USAFiber Queen Mine, Schoolhouse Canyon, Los Angeles County, California, USA ? (more information) |
| ⓘ Tridymite Formula: SiO2 Localities: Santa Catalina Island, Los Angeles County, California, USAChumash Park, Agoura Hills, Los Angeles County, California, USAPomona-Spadra area, Puente Hills, Los Angeles County, California, USA Description: Occurs in volcanics. |
| ⓘ Tungusite Formula: Ca4Fe2Si6O15(OH)6 |
| ⓘ Ulexite Formula: NaCa[B5O6(OH)6] · 5H2O Colour: White Description: Satiny fibrous aggregates. An alteration product of probertite. |
| ⓘ Veatchite (TL) Formula: Sr2B11O16(OH)5 · H2O Type Locality: Description: A small amount occurs with howlite and colemanite. Pearly, cross-fiber seams in howlite, colemanite, limestone or marl, and as nests of radiating pearly plates in the same matrix materials. References: Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.p.349 |
| ⓘ 'Veatchite-A' Formula: Sr2B11O16(OH)5 · H2O |
| ⓘ Vivianite Formula: Fe2+Fe2+2(PO4)2 · 8H2O Colour: Blue Description: Occurs as earthy blue masses formed by the decomposition of animal bones in the tar pits. |
| ⓘ 'Wad' |
| ⓘ 'Wad var. Cobalt-bearing Wad' |
| ⓘ Zircon Formula: Zr(SiO4) Localities: Pacoima Canyon pegmatite locality (Pacoima Canyon Allanite pegmatite; Allanite locality), Pacoima Canyon, Los Angeles County, California, USAPoint Fermin, San Pedro, Los Angeles County, California, USASand Canyon placers, Sand Canyon, Los Angeles County, California, USAPacoima Canyon allanite pegmatite locality No. 2, Pacoima Canyon, Los Angeles County, California, USAPacoima Canyon, Los Angeles County, California, USA Colour: Pinkish Fluorescence: pale yellow, strong orange Description: Abundant transparent crystals in pegmatite. |
| ⓘ Zoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) Localities: Reported from at least 7 localities in this region. |
Los Angeles County, California, USA