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Type:
Largest Settlements:
| Place | Population |
|---|---|
| Roseville | 130,269 (2017) |
| Rocklin | 61,213 (2017) |
| Lincoln | 46,474 (2017) |
| Granite Bay | 20,402 (2011) |
| Auburn | 13,953 (2017) |
| North Auburn | 13,022 (2011) |
Clubs in region:
Other Languages:
French:
Comté de Placer, Californie, États-Unis
German:
Placer County, Kalifornien, Vereinigte Staaten
Italian:
Contea di Placer, California, Stati Uniti d'America
Russian:
Плэсер, Калифорния, Соединённые Штаты Америки
Simplified Chinese:
普莱瑟县, 加利福尼亚州, 美国
Spanish:
Condado de Placer, California, Estados Unidos
Albanian:
Placer County, Kalifornia, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة بلاسر, كاليفورنيا, الولايات المتحدة
Armenian:
Փլեյսեր շրջան, Կալիֆոռնիա, Ամերիկայի Միացյալ Նահանգներ
Basque:
Placer konderria, Kalifornia
Bavarian:
Placer County, Kalifornien, Vaoanigte Stootn
Bishnupriya Manipuri:
প্লাসের কাউন্টি, ক্যালিফোর্নিয়া, তিলপারাষ্ট্র
Bulgarian:
Плейсър, Калифорния, Съединени американски щати
Cebuano:
Placer County, California
Czech:
Placer County, Kalifornie, Spojené státy americké
Danish:
Placer County, Californien, USA
Dutch:
Placer County, Verenigde Staten
Farsi/Persian:
شهرستان پلاسر، کالیفرنیا, کالیفرنیا, ایالات متحده آمریکا
Hungarian:
Placer megye, Kalifornia, Amerikai Egyesült Államok
Irish Gaelic:
Contae Placer, California, Stáit Aontaithe Mheiriceá
Japanese:
プレイサー郡, カリフォルニア州, アメリカ合衆国
Kapampangan:
Placer County, California, Estados Unidos
Latin:
Placer Comitatus, California, Civitates Foederatae Americae
Limburgian:
Placer County, Californië, Vereinegde Staote vaan Amerika
Low Saxon/Low German:
Placer County, Kalifornien, USA
Malayalam:
പ്ലാസ്സർ കൗണ്ടി, കാലിഫോർണിയ
Norwegian:
Placer County, California, USA
Polish:
Hrabstwo Placer, Kalifornia, Stany Zjednoczone
Portuguese:
Condado de Placer, Califórnia, Estados Unidos
Serbian:
Округ Пласер, Калифорнија, Сједињене Америчке Државе
Serbo-Croatian:
Placer County, Kalifornija, Sjedinjene Američke Države
Swedish:
Placer County, Kalifornien, USA
Tagalog:
Placer County, California, Estados Unidos
Turkish:
Placer County, Kaliforniya, Amerika Birleşik Devletleri
Ukrainian:
Пласер, Каліфорнія, Сполучені Штати Америки
Urdu:
پلیسر کاؤنٹی، کیلیفورنیا, کیلیفورنیا, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Placer, California, Chủng Quốc Hoa Kỳ
Waray:
Condado han Placer, California, Estados Unidos
Western Punjabi:
پلیسر کاؤنٹی, کیلیفورنیا, امریکہ
NOTE: The USGS staff reporter(s) who worked on the localities in this county repeatedly refer to the mine workings as including one or more "tunnel(s)." A tunnel is technically a through openings with 2 portals. In all likelyhood, the majority of these "tunnels" are probably adits (one portal).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities68 valid minerals.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| ⓘ | Native Gold var. Electrum | 1.AA.05 | (Au,Ag) |
| ⓘ | 1.AA.05 | Au | |
| ⓘ | Native Silver | 1.AA.05 | Ag |
| ⓘ | Native Osmium | 1.AF.05 | (Os,Ir,Ru) |
| ⓘ | var. Iridosmine | 1.AF.05 | (Os,Ir) |
| ⓘ | Native Platinum | 1.AF.10 | Pt |
| ⓘ | Graphite | 1.CB.05a | C |
| ⓘ | Diamond | 1.CB.10a | C |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Acanthite | 2.BA.35 | Ag2S |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Millerite | 2.CC.20 | NiS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Stibnite | 2.DB.05 | Sb2S3 |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| ⓘ | Cobaltite | 2.EB.25 | CoAsS |
| ⓘ | Pyrargyrite | 2.GA.05 | Ag3SbS3 |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| Group 3 - Halides | |||
| ⓘ | Chlorargyrite | 3.AA.15 | AgCl |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
| ⓘ | Hercynite | 4.BB.05 | Fe2+Al2O4 |
| ⓘ | Magnesiochromite | 4.BB.05 | MgCr2O4 |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hercynite var. Picotite | 4.BB.05 | (Fe,Mg)(Al,Cr)2O4 |
| ⓘ | Hausmannite | 4.BB.10 | Mn2+Mn3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Rutilated Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Smoky Quartz | 4.DA.05 | SiO2 |
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
| ⓘ | Lechatelierite | 4.DA.30 | SiO2 |
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | Brookite | 4.DD.10 | TiO2 |
| ⓘ | Manganite | 4.FD.15 | Mn3+O(OH) |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Magnesite | 5.AB.05 | MgCO3 |
| ⓘ | Rhodochrosite | 5.AB.05 | MnCO3 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Chalcanthite | 7.CB.20 | CuSO4 · 5H2O |
| ⓘ | Alunogen | 7.CB.45 | Al2(SO4)3 · 17H2O |
| ⓘ | Coquimbite | 7.CB.55 | AlFe3(SO4)6(H2O)12 · 6H2O |
| ⓘ | Kalinite | 7.CC.15 | KAl(SO4)2 · 11H2O |
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 9 - Silicates | |||
| ⓘ | Chrysotile | 9.00. | Mg3(Si2O5)(OH)4 |
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | var. Hessonite | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Uvarovite | 9.AD.25 | Ca3Cr3+2(SiO4)3 |
| ⓘ | Thorite | 9.AD.30 | Th(SiO4) |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Vesuvianite | 9.BG.35 | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Anthophyllite | 9.DD.05 | ◻Mg2Mg5(Si8O22)(OH)2 |
| ⓘ | Tremolite | 9.DE.10 | ◻Ca2Mg5(Si8O22)(OH)2 |
| ⓘ | Rhodonite | 9.DK.05 | CaMn3Mn[Si5O15] |
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Phengite | 9.EC.15 | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Mariposite | 9.EC.15 | K(Al,Cr)2(Al,Si)4O10(OH)2 |
| ⓘ | Nontronite | 9.EC.40 | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| ⓘ | Clinochlore | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
| ⓘ | var. Chromium-bearing Clinochlore | 9.EC.55 | Mg5(Al,Cr)2Si3O10(OH)8 |
| ⓘ | var. Pennine | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| ⓘ | Antigorite | 9.ED.15 | Mg3(Si2O5)(OH)4 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'K Feldspar var. Adularia' | - | KAlSi3O8 |
| ⓘ | 'Amphibole Supergroup' | - | AB2C5(T8O22)W2 |
| ⓘ | 'Asbestos' | - | |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Clay minerals' | - | |
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Monazite Group' | - | REE(PO4) |
| ⓘ | 'Psilomelane' | - | |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Fayalite-Forsterite Series' | - | |
| ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(C2+4C3+)(AlSi7O22)W2 |
| ⓘ | 'Soapstone' | - | |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Pyroxene Group' | - | ADSi2O6 |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
| ⓘ | 'Manganese Oxides' | - | |
| ⓘ | 'Axinite Group' | - | |
| ⓘ | 'Amphibole Asbestos' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Alunogen | Al2(SO4)3 · 17H2O |
| H | ⓘ Anthophyllite | ◻Mg2Mg5(Si8O22)(OH)2 |
| H | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Chalcanthite | CuSO4 · 5H2O |
| H | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| H | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| H | ⓘ Coquimbite | AlFe3(SO4)6(H2O)12 · 6H2O |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Kalinite | KAl(SO4)2 · 11H2O |
| H | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Manganite | Mn3+O(OH) |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| H | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| H | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Clinochlore var. Pennine | Mg5Al(AlSi3O10)(OH)8 |
| H | ⓘ Muscovite var. Mariposite | K(Al,Cr)2(Al,Si)4O10(OH)2 |
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| B | Boron | |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Diamond | C |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Graphite | C |
| C | ⓘ Magnesite | MgCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Rhodochrosite | MnCO3 |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Alunogen | Al2(SO4)3 · 17H2O |
| O | ⓘ Amphibole Supergroup | AB2C5(T8O22)W2 |
| O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | ⓘ Anthophyllite | ◻Mg2Mg5(Si8O22)(OH)2 |
| O | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Brookite | TiO2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Chalcanthite | CuSO4 · 5H2O |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| O | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| O | ⓘ Coquimbite | AlFe3(SO4)6(H2O)12 · 6H2O |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Grossular | Ca3Al2(SiO4)3 |
| O | ⓘ Hausmannite | Mn2+Mn23+O4 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Hercynite | Fe2+Al2O4 |
| O | ⓘ Grossular var. Hessonite | Ca3Al2(SiO4)3 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Kalinite | KAl(SO4)2 · 11H2O |
| O | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Lechatelierite | SiO2 |
| O | ⓘ Magnesite | MgCO3 |
| O | ⓘ Magnesiochromite | MgCr2O4 |
| O | ⓘ Manganite | Mn3+O(OH) |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Monazite Group | REE(PO4) |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rhodochrosite | MnCO3 |
| O | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| O | ⓘ Quartz var. Rutilated Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Quartz var. Smoky Quartz | SiO2 |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | ⓘ Thorite | Th(SiO4) |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| O | ⓘ Uvarovite | Ca3Cr23+(SiO4)3 |
| O | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Fayalite-Forsterite Series | |
| O | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Clinochlore var. Pennine | Mg5Al(AlSi3O10)(OH)8 |
| O | ⓘ Pyroxene Group | ADSi2O6 |
| O | ⓘ Hercynite var. Picotite | (Fe,Mg)(Al,Cr)2O4 |
| O | ⓘ Muscovite var. Mariposite | K(Al,Cr)2(Al,Si)4O10(OH)2 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Mg | Magnesium | |
| Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Mg | ⓘ Anthophyllite | ◻Mg2Mg5(Si8O22)(OH)2 |
| Mg | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| Mg | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| Mg | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| Mg | ⓘ Magnesite | MgCO3 |
| Mg | ⓘ Magnesiochromite | MgCr2O4 |
| Mg | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Mg | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Mg | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Mg | ⓘ Fayalite-Forsterite Series | |
| Mg | ⓘ Clinochlore var. Pennine | Mg5Al(AlSi3O10)(OH)8 |
| Mg | ⓘ Hercynite var. Picotite | (Fe,Mg)(Al,Cr)2O4 |
| Al | Aluminium | |
| Al | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Alunogen | Al2(SO4)3 · 17H2O |
| Al | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Al | ⓘ Coquimbite | AlFe3(SO4)6(H2O)12 · 6H2O |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Al | ⓘ Hercynite | Fe2+Al2O4 |
| Al | ⓘ Grossular var. Hessonite | Ca3Al2(SiO4)3 |
| Al | ⓘ Kalinite | KAl(SO4)2 · 11H2O |
| Al | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Al | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Al | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Clinochlore var. Pennine | Mg5Al(AlSi3O10)(OH)8 |
| Al | ⓘ Hercynite var. Picotite | (Fe,Mg)(Al,Cr)2O4 |
| Al | ⓘ Muscovite var. Mariposite | K(Al,Cr)2(Al,Si)4O10(OH)2 |
| Si | Silicon | |
| Si | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Anthophyllite | ◻Mg2Mg5(Si8O22)(OH)2 |
| Si | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| Si | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Si | ⓘ Grossular var. Hessonite | Ca3Al2(SiO4)3 |
| Si | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Lechatelierite | SiO2 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| Si | ⓘ Quartz var. Rutilated Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Quartz var. Smoky Quartz | SiO2 |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | ⓘ Thorite | Th(SiO4) |
| Si | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Si | ⓘ Uvarovite | Ca3Cr23+(SiO4)3 |
| Si | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Fayalite-Forsterite Series | |
| Si | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Clinochlore var. Pennine | Mg5Al(AlSi3O10)(OH)8 |
| Si | ⓘ Pyroxene Group | ADSi2O6 |
| Si | ⓘ Muscovite var. Mariposite | K(Al,Cr)2(Al,Si)4O10(OH)2 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| P | Phosphorus | |
| P | ⓘ Monazite Group | REE(PO4) |
| S | Sulfur | |
| S | ⓘ Acanthite | Ag2S |
| S | ⓘ Alunogen | Al2(SO4)3 · 17H2O |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Chalcanthite | CuSO4 · 5H2O |
| S | ⓘ Chalcocite | Cu2S |
| S | ⓘ Cobaltite | CoAsS |
| S | ⓘ Coquimbite | AlFe3(SO4)6(H2O)12 · 6H2O |
| S | ⓘ Galena | PbS |
| S | ⓘ Kalinite | KAl(SO4)2 · 11H2O |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Millerite | NiS |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Pyrargyrite | Ag3SbS3 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Stibnite | Sb2S3 |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Cl | Chlorine | |
| Cl | ⓘ Chlorargyrite | AgCl |
| K | Potassium | |
| K | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| K | ⓘ Kalinite | KAl(SO4)2 · 11H2O |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Mariposite | K(Al,Cr)2(Al,Si)4O10(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Ca | ⓘ Grossular var. Hessonite | Ca3Al2(SiO4)3 |
| Ca | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Ca | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Ca | ⓘ Uvarovite | Ca3Cr23+(SiO4)3 |
| Ca | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Ca | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Ti | Titanium | |
| Ti | ⓘ Brookite | TiO2 |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Rutile | TiO2 |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Cr | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| Cr | ⓘ Magnesiochromite | MgCr2O4 |
| Cr | ⓘ Uvarovite | Ca3Cr23+(SiO4)3 |
| Cr | ⓘ Hercynite var. Picotite | (Fe,Mg)(Al,Cr)2O4 |
| Cr | ⓘ Muscovite var. Mariposite | K(Al,Cr)2(Al,Si)4O10(OH)2 |
| Mn | Manganese | |
| Mn | ⓘ Hausmannite | Mn2+Mn23+O4 |
| Mn | ⓘ Manganite | Mn3+O(OH) |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Mn | ⓘ Rhodochrosite | MnCO3 |
| Mn | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| Fe | Iron | |
| Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | ⓘ Coquimbite | AlFe3(SO4)6(H2O)12 · 6H2O |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Hercynite | Fe2+Al2O4 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Fe | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ Siderite | FeCO3 |
| Fe | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Fe | ⓘ Fayalite-Forsterite Series | |
| Fe | ⓘ Hercynite var. Picotite | (Fe,Mg)(Al,Cr)2O4 |
| Co | Cobalt | |
| Co | ⓘ Cobaltite | CoAsS |
| Ni | Nickel | |
| Ni | ⓘ Millerite | NiS |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chalcanthite | CuSO4 · 5H2O |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| As | ⓘ Cobaltite | CoAsS |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Ru | Ruthenium | |
| Ru | ⓘ Native Osmium | (Os,Ir,Ru) |
| Ag | Silver | |
| Ag | ⓘ Acanthite | Ag2S |
| Ag | ⓘ Chlorargyrite | AgCl |
| Ag | ⓘ Native Gold var. Electrum | (Au,Ag) |
| Ag | ⓘ Pyrargyrite | Ag3SbS3 |
| Ag | ⓘ Native Silver | Ag |
| Sb | Antimony | |
| Sb | ⓘ Pyrargyrite | Ag3SbS3 |
| Sb | ⓘ Stibnite | Sb2S3 |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| Os | Osmium | |
| Os | ⓘ Native Osmium | (Os,Ir,Ru) |
| Os | ⓘ Native Osmium var. Iridosmine | (Os,Ir) |
| Ir | Iridium | |
| Ir | ⓘ Native Osmium | (Os,Ir,Ru) |
| Ir | ⓘ Native Osmium var. Iridosmine | (Os,Ir) |
| Pt | Platinum | |
| Pt | ⓘ Native Platinum | Pt |
| Au | Gold | |
| Au | ⓘ Native Gold var. Electrum | (Au,Ag) |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Th | Thorium | |
| Th | ⓘ Thorite | Th(SiO4) |
Fossils
There are 56 fossil localities from the PaleoBioDB database within this region.These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.
| Occurrences | 56 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Youngest Fossil Listed | 1.80 Ma (Pleistocene) | |||||||||
| Oldest Fossil Listed | 166 Ma (Middle Jurassic) | |||||||||
| Stratigraphic Units |
| |||||||||
| Fossils from Region | Click here to show the list. | |||||||||
| Fossil Localities | Click to show 7 fossil localities |
Other Databases
| Wikipedia: | https://en.wikipedia.org/wiki/Placer_County,_California |
|---|---|
| Wikidata ID: | Q156353 |
| GeoNames ID: | 5383537 |
Localities in this Region
- California
- Placer County
- American River
- Bald Rock Mountain
- Canada Hill Mining District
- ⭔Cisco
- ⭔Clipper Gap
- Colfax Mining District (Illinois Mining District)
- Damascus Mining District (Sunny South Mining District)
- Duncan Peak Mining District
- Dutch Flat Mining District (Towle Mining District)
- East Belt
- Emigrant Gap Mining District (Blue Canyon Mining District)
- ⭔Forest Hill Divide area
- Forest Hill Mining District
- George Slide Mine
- Gold Run Mining District
- Grizzly Bear House
- American River Gold Mining Company (American River Gold Mng Co)
- Bazacoo Mine
- Buckeye Bar occurrence
- Carlson Mine
- Christmas Hill Mine
- Continential Mine
- Dewey prospect
- El Dorado and Placer Gold Mining and Power Company
- Gold Point Placer Mine
- Green Point Mercury and Uranium prospect
- Green Point occurrence
- International Mine (Cons. Intl. [Consolidated International]; International Quartz Mine)
- Lakeview Mine
- Mack Mine
- Mammoth Bar (Pacific Gold Dredging Company property)
- Monarch Development Company Ltd. Mine (Monarch Gratz Brothers Mine)
- North Star Mine [1]
- Perkins Placer Mine
- Poverty Bar placer
- Red Deer Placer Mine
- Red Hill
- Unidentified Au mine [22]
- Unidentified Au shaft [23]
- Unnamed Au mine [82] (Dredged area)
- Unnamed Au occurrence [45]
- Unnamed Au occurrence [46]
- Unnamed Au occurrence [69]
- Unnamed stone deposit [2]
- Whiteman and Mather Placer Mine
- ⭔Hotaling
- Iowa Hill Mining District
- Placer County
- California
- Placer County
- Iowa Hill Mining District
- Last Chance Mining District
- Lincoln Mining District
- Magra
- Marshall Canyon
- Michigan Bluff Mining District (Michigan Bluff Mining deposit)
- ⭔Midas
- Ophir Mining District (Auburn Mining District; Duncan Hill Mining District)
- Oro Flame Mine
- Penryn Mining District
- Ralston Divide Mining District
- Rocklin Mining District (Loomis Mining District)
- ⭔Roseville
- Scotts Corner
- Snakehead Point
- Colfax claim
- Dragon & Carr occurrence
- Driscoll & Michelson occurrence
- Dunbar lease
- Gold Ring placer (J. D. Peters)
- Green Valley Blue Grave placer
- Hayden Hill placer
- McIntyres claim (Mc Intyres)
- Morgan Extension occurrence
- Morgan Mine (Morgan deposits)
- North Fork Chrome Mine
- Old Log Cabin Placer Mine
- Shaw Brothers Mine
- Undeveloped Magnesite property [1]
- Unnamed Au placer [29]
- Unnamed Au placer [31]
- Unnamed Cr occurrence [8]
- West Chrome Mine (Knob Hill prospect; West prospect)
- White placer prospect
- Sugarloaf
- Tahoe Mining District
- Unnamed Magnesite occurrences [2]
- Westville Mining District
- Wheatland Mining District
- Placer County
Other Regions, Features and Areas that Intersect
North AmericaContinent
North America PlateTectonic Plate
- Calaveras-Baker DomainDomain
- California Central ValleyAccretionary Complex
- Foothills-Wallowa DomainDomain
- Great Valley BasinBasin
- Mojave DomainDomain
- Northern Basin and RangeWide Rift
- Sacramento BasinBasin
- Shoofly-Olds Ferry DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- California
- El Dorado County
- El Dorado National ForestNational Forest
- El Dorado County
- Sierra NevadaMountain Range
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
Lindgren, Waldemar (1900) Colfax folio, California. Folios of the Geologic Atlas 66. US Geological Survey doi:10.3133/gf66
Bramel, Hadley R., Heyl, George R., Cox, Manning W., Ransome, Alfred L., Eric, John H., Wyant, Donald G. (1948) Copper in California. Bulletin 144. California State Mining Bureau pp.197-387
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Bear River placer [2], Dutch Flat, Dutch Flat Mining District, Placer County, California, USA