Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Twin Lakes Limestone deposit, Kaiser Wilderness area, Fresno County, California, USAi
Regional Level Types
Twin Lakes Limestone depositDeposit
Kaiser Wilderness areaWilderness Area
Fresno CountyCounty
CaliforniaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
06347320017272304762008.jpg
Spinel, etc.

Twin Lakes Limestone deposit, Kaiser Wilderness area, Fresno County, California, USA
00967900017272304777102.jpg
Spinel, etc.

Twin Lakes Limestone deposit, Kaiser Wilderness area, Fresno County, California, USA
06489070017271980684620.jpg
Epidote

Twin Lakes Limestone deposit, Kaiser Wilderness area, Fresno County, California, USA
06347320017272304762008.jpg
Spinel, etc.

Twin Lakes Limestone deposit, Kaiser Wilderness area, Fresno County, California, USA
01795760017271982936569.jpg
Spinel, etc.

Twin Lakes Limestone deposit, Kaiser Wilderness area, Fresno County, California, USA
06489070017271980684620.jpg
Epidote

Twin Lakes Limestone deposit, Kaiser Wilderness area, Fresno County, California, USA
06347320017272304762008.jpg
Spinel, etc.

Twin Lakes Limestone deposit, Kaiser Wilderness area, Fresno County, California, USA
07529060017271983021017.jpg
Spinel, etc.

Twin Lakes Limestone deposit, Kaiser Wilderness area, Fresno County, California, USA
Latitude & Longitude (WGS84):
37° 17' 29'' North , 119° 8' 38'' West
Latitude & Longitude (decimal):
37.29148,-119.14389
GeoHash:
G#: 9qek0udnd
GRN:
N25W69
Type:
Deposit
Kรถppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Big Creek175 (2011)13.2km
Shaver Lake634 (2011)25.9km
Bass Lake527 (2011)37.5km
Auberry2,369 (2011)38.2km
Mammoth Lakes7,946 (2018)42.5km
Mindat Locality ID:
220101
Long-form identifier:
mindat:1:2:220101:9
GUID (UUID V4):
0


An occurrence located in the NWยผ sec. 28, NEยผ sec. 29, T7S, R26E, MDM, 0.6 km (0.4 mile) E of Lower Twin Lake (on the trail from Lower Twin Lake to Potter Pass), on National Forest wilderness land (Kaiser Wilderness).

NOTE: Coordinates are approximate to the center of the boundary between the NWยผ sec. 28 and the NEยผ sec. 29.

Mineralization is hosted in metamorphosed, crystalline limestone, calc-silicate hornfels and skarn. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


25 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

โ“˜ Anorthite
Formula: Ca(Al2Si2O8)
Description: Small, well-developed crystals growing out from cavity walls.
โ“˜ Brucite
Formula: Mg(OH)2
Description: Occurs as irregular masses and rounded pellets in contact with metamorphosed limestone; small globular or spheroidal masses.
โ“˜ Chalcocite
Formula: Cu2S
โ“˜ Clinohumite
Formula: Mg9(SiO4)4F2
Colour: Yellowish orange
Description: Small, striated crystals in contact limestone.
โ“˜ Clintonite
Formula: CaAlMg2(SiAl3O10)(OH)2
Description: Occurs in spinel-bearing calc-silicate hornfels.
โ“˜ Diaspore
Formula: AlO(OH)
โ“˜ Diopside
Formula: CaMgSi2O6
Colour: Pink, white, dull gray
Description: Crystals in limestone.
โ“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
โ“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
โ“˜ Grossular
Formula: Ca3Al2(SiO4)3
โ“˜ Hedenbergite
Formula: CaFe2+Si2O6
Description: Principal skarn mineral.
โ“˜ Ilvaite
Formula: CaFe3+Fe2+2(Si2O7)O(OH)
Colour: Black
Description: Occurs as slender crystals.
โ“˜ Ludwigite
Formula: Mg2Fe3+(BO3)O2
Habit: Acicular
โ“˜ Magnetite
Formula: Fe2+Fe3+2O4
Description: Occurs in skarn of the scheelite occurrence.
โ“˜ Orthoclase
Formula: K(AlSi3O8)
โ“˜ Pargasite
Formula: NaCa2(Mg4Al)(Si6Al2)O22(OH)2
Habit: Prismatic
Colour: Light brown
Description: Fine prismatic crystals.
โ“˜ Pertsevite-(F)
Formula: Mg2(BO3)(F,OH)
โ“˜ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Description: Occurs as isolated crystals and aggregates in contact zones.
โ“˜ Pyrrhotite
Formula: Fe1-xS
โ“˜ Scheelite
Formula: Ca(WO4)
โ“˜ Spinel
Formula: MgAl2O4
Colour: Colourless, red, black
Description: Crystals 1 to 4 mm diameter.
โ“˜ Titanite
Formula: CaTi(SiO4)O
โ“˜ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
Description: Occurs as 1 to 2 inch (2.5 to 5.0 cm) crystals in contact zones.
โ“˜ Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Colour: Greenish brown
Description: Occurs as crystals up to ยฝ inch (1.25 cm) diameter. Widespread in contact metamorphic limestone.
โ“˜ Wightmanite
Formula: Mg5(BO3)O(OH)5 · 2H2O
โ“˜ Wollastonite
Formula: Ca3(Si3O9)

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
โ“˜Chalcocite2.BA.05Cu2S
โ“˜Pyrrhotite2.CC.10Fe1-xS
Group 4 - Oxides and Hydroxides
โ“˜Magnetite4.BB.05Fe2+Fe3+2O4
โ“˜Spinel4.BB.05MgAl2O4
โ“˜Diaspore4.FD.10AlO(OH)
โ“˜Brucite4.FE.05Mg(OH)2
Group 6 - Borates
โ“˜Ludwigite6.AB.30Mg2Fe3+(BO3)O2
โ“˜Wightmanite6.AB.55Mg5(BO3)O(OH)5 ยท 2H2O
โ“˜Pertsevite-(F)6.AB.75Mg2(BO3)(F,OH)
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
โ“˜Scheelite7.GA.05Ca(WO4)
Group 9 - Silicates
โ“˜Grossular9.AD.25Ca3Al2(SiO4)3
โ“˜Clinohumite9.AF.55Mg9(SiO4)4F2
โ“˜Titanite9.AG.15CaTi(SiO4)O
โ“˜Ilvaite9.BE.07CaFe3+Fe2+2(Si2O7)O(OH)
โ“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
โ“˜Vesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(โ—ป4)โ—ป[Si2O7]4[(SiO4)10]O(OH)9
โ“˜Diopside9.DA.15CaMgSi2O6
โ“˜Hedenbergite9.DA.15CaFe2+Si2O6
โ“˜Tremolite9.DE.10โ—ปCa2Mg5(Si8O22)(OH)2
โ“˜Pargasite9.DE.15NaCa2(Mg4Al)(Si6Al2)O22(OH)2
โ“˜Wollastonite9.DG.05Ca3(Si3O9)
โ“˜Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
โ“˜Clintonite9.EC.35CaAlMg2(SiAl3O10)(OH)2
โ“˜Orthoclase9.FA.30K(AlSi3O8)
โ“˜Anorthite9.FA.35Ca(Al2Si2O8)
Unclassified
โ“˜'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hโ“˜ BruciteMg(OH)2
Hโ“˜ ClintoniteCaAlMg2(SiAl3O10)(OH)2
Hโ“˜ DiasporeAlO(OH)
Hโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hโ“˜ IlvaiteCaFe3+Fe22+(Si2O7)O(OH)
Hโ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Hโ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Hโ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hโ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Hโ“˜ WightmaniteMg5(BO3)O(OH)5 · 2H2O
Hโ“˜ Pertsevite-(F)Mg2(BO3)(F,OH)
BBoron
Bโ“˜ LudwigiteMg2Fe3+(BO3)O2
Bโ“˜ WightmaniteMg5(BO3)O(OH)5 · 2H2O
Bโ“˜ Pertsevite-(F)Mg2(BO3)(F,OH)
OOxygen
Oโ“˜ AnorthiteCa(Al2Si2O8)
Oโ“˜ BruciteMg(OH)2
Oโ“˜ ClinohumiteMg9(SiO4)4F2
Oโ“˜ ClintoniteCaAlMg2(SiAl3O10)(OH)2
Oโ“˜ DiasporeAlO(OH)
Oโ“˜ DiopsideCaMgSi2O6
Oโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oโ“˜ GrossularCa3Al2(SiO4)3
Oโ“˜ HedenbergiteCaFe2+Si2O6
Oโ“˜ IlvaiteCaFe3+Fe22+(Si2O7)O(OH)
Oโ“˜ LudwigiteMg2Fe3+(BO3)O2
Oโ“˜ MagnetiteFe2+Fe23+O4
Oโ“˜ OrthoclaseK(AlSi3O8)
Oโ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Oโ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Oโ“˜ ScheeliteCa(WO4)
Oโ“˜ SpinelMgAl2O4
Oโ“˜ TitaniteCaTi(SiO4)O
Oโ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oโ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Oโ“˜ WightmaniteMg5(BO3)O(OH)5 · 2H2O
Oโ“˜ WollastoniteCa3(Si3O9)
Oโ“˜ Garnet GroupX3Z2(SiO4)3
Oโ“˜ Pertsevite-(F)Mg2(BO3)(F,OH)
FFluorine
Fโ“˜ ClinohumiteMg9(SiO4)4F2
Fโ“˜ Pertsevite-(F)Mg2(BO3)(F,OH)
NaSodium
Naโ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
MgMagnesium
Mgโ“˜ BruciteMg(OH)2
Mgโ“˜ ClinohumiteMg9(SiO4)4F2
Mgโ“˜ ClintoniteCaAlMg2(SiAl3O10)(OH)2
Mgโ“˜ DiopsideCaMgSi2O6
Mgโ“˜ LudwigiteMg2Fe3+(BO3)O2
Mgโ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Mgโ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgโ“˜ SpinelMgAl2O4
Mgโ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mgโ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Mgโ“˜ WightmaniteMg5(BO3)O(OH)5 · 2H2O
Mgโ“˜ Pertsevite-(F)Mg2(BO3)(F,OH)
AlAluminium
Alโ“˜ AnorthiteCa(Al2Si2O8)
Alโ“˜ ClintoniteCaAlMg2(SiAl3O10)(OH)2
Alโ“˜ DiasporeAlO(OH)
Alโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alโ“˜ GrossularCa3Al2(SiO4)3
Alโ“˜ OrthoclaseK(AlSi3O8)
Alโ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Alโ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Alโ“˜ SpinelMgAl2O4
Alโ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
SiSilicon
Siโ“˜ AnorthiteCa(Al2Si2O8)
Siโ“˜ ClinohumiteMg9(SiO4)4F2
Siโ“˜ ClintoniteCaAlMg2(SiAl3O10)(OH)2
Siโ“˜ DiopsideCaMgSi2O6
Siโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siโ“˜ GrossularCa3Al2(SiO4)3
Siโ“˜ HedenbergiteCaFe2+Si2O6
Siโ“˜ IlvaiteCaFe3+Fe22+(Si2O7)O(OH)
Siโ“˜ OrthoclaseK(AlSi3O8)
Siโ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Siโ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Siโ“˜ TitaniteCaTi(SiO4)O
Siโ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siโ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Siโ“˜ WollastoniteCa3(Si3O9)
Siโ“˜ Garnet GroupX3Z2(SiO4)3
SSulfur
Sโ“˜ ChalcociteCu2S
Sโ“˜ PyrrhotiteFe1-xS
KPotassium
Kโ“˜ OrthoclaseK(AlSi3O8)
Kโ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Caโ“˜ AnorthiteCa(Al2Si2O8)
Caโ“˜ ClintoniteCaAlMg2(SiAl3O10)(OH)2
Caโ“˜ DiopsideCaMgSi2O6
Caโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caโ“˜ GrossularCa3Al2(SiO4)3
Caโ“˜ HedenbergiteCaFe2+Si2O6
Caโ“˜ IlvaiteCaFe3+Fe22+(Si2O7)O(OH)
Caโ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Caโ“˜ ScheeliteCa(WO4)
Caโ“˜ TitaniteCaTi(SiO4)O
Caโ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caโ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Caโ“˜ WollastoniteCa3(Si3O9)
TiTitanium
Tiโ“˜ TitaniteCaTi(SiO4)O
FeIron
Feโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feโ“˜ HedenbergiteCaFe2+Si2O6
Feโ“˜ IlvaiteCaFe3+Fe22+(Si2O7)O(OH)
Feโ“˜ LudwigiteMg2Fe3+(BO3)O2
Feโ“˜ MagnetiteFe2+Fe23+O4
Feโ“˜ PyrrhotiteFe1-xS
Feโ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
CuCopper
Cuโ“˜ ChalcociteCu2S
WTungsten
Wโ“˜ ScheeliteCa(WO4)

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Chesterman, C.W. (1942) Contact metamorphic rocks of the Twin Lakes region, Fresno County, California. California Division Mines Report 38: 243-281.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 65, 67, 115, 151, 225, 227, 246, 250, 287, 308, 309, 345, 384, 386.
Vlisidid, A.C. and Schaller, W.T. (1974) The identity of paigeite with vonsenite, and chemical analysis of vonsenite, ludwigite and hulsite. Neues Jahrbuch fรผr Mineralogie, Monatshefte 1974(3-4): 95-105
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
Aleksandrov, S.M. (2007): Endogeneous transformation of kotoite in calciphyres at magnesian-skarn deposits of boron. Geochem. Internat., 45, 666-684.
Quick NavTopMineral ListRock TypesOther RegionsReferences
 
and/or  
Mindat.orgยฎ is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindatยฎ and mindat.orgยฎ are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are ยฉ OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833โ€“844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 14, 2026 05:49:49 Page updated: August 10, 2025 01:28:36
Go to top of page