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Spenceville Mining District, Nevada Co., California, USAi
Regional Level Types
Spenceville Mining DistrictMining District
Nevada Co.County
CaliforniaState
USACountry

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Key
Latitude & Longitude (WGS84):
39° North , 120° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~68km
Locality type:


Principally a former Cu mining district with Fe & clay deposits, located around the town of Spenceville, in SE Nevada County.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity 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-localities

31 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Detailed Mineral List:

Baryte
Formula: BaSO4
Description: Occurs as seams in diabase.
Reference: Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York; Appendix 2 (1909), by Dana, E.S. and W.E. Ford: 13; MacBoyle, Errol (1919), Mines and mineral resources of Nevada County: California Mining Bureau. Report 16, 270 pp. (published as separate chapter): 59; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 97.
Bementite
Formula: Mn7Si6O15(OH)8
Reference: Hewett, Donnel Foster, Charles Wesley Chesterman & Bennie Wyatt Troxel (1961), Tephroite in California manganese deposits: Economic Geology: 56: 39-58; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 413.
Bornite
Formula: Cu5FeS4
Calcite
Formula: CaCO3
Calcite var: Manganoan Calcite
Formula: (Ca,Mn)CO3
Reference: Econ Geol (1992) 87:2023-2040
Caryopilite
Formula: Mn2+3Si2O5(OH)4
Chalcocite
Formula: Cu2S
Description: Occurs in an enriched zone.
Reference: Forstner, William (1908), Copper deposits in the western foothills of the Sierra Nevada: Mining and Scientific Press: 96: 745; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 130.
Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 9 localities in this region.
'Chlorite Group'
Covellite
Formula: CuS
Description: Occurs in an enriched zone.
Reference: Forstner, William (1908), Copper deposits in the western foothills of the Sierra Nevada: Mining and Scientific Press: 96: 745; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 130.
Cuprite
Formula: Cu2O
Reference: Report of the State Mineralogist, Volume 16
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Galena
Formula: PbS
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Gold
Formula: Au
Localities: Reported from at least 6 localities in this region.
Hausmannite
Formula: Mn2+Mn3+2O4
Hematite
Formula: Fe2O3
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10007226.
Jacobsite
Formula: Mn2+Fe3+2O4
Reference: Econ Geol (1992) 87:2023-2040
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10007226.
'Limonite'
Formula: (Fe,O,OH,H2O)
Malachite
Formula: Cu2(CO3)(OH)2
'Manganese Oxides'
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10031697.
Manganite
Formula: Mn3+O(OH)
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Marcasite
Formula: FeS2
Description: Occurs in an enriched zone with Cu sulphides.
Reference: Forstner, William (1908), Copper deposits in the western foothills of the Sierra Nevada: Mining and Scientific Press: 96: 745; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 255; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 74.
Neotocite
Formula: (Mn,Fe,Mg)SiO3 · H2O
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10031697.
'Psilomelane'
Formula: Mn, O
Pyrite
Formula: FeS2
Localities: Reported from at least 8 localities in this region.
Pyrolusite
Formula: Mn4+O2
Description: Well crystallized.
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 164; Pemberton, H. Earl (1983), Minerals of California: 165.
Pyrophanite
Formula: Mn2+TiO3
Description: Identified in a polished section.
Reference: Hewett, Donnel Foster, Charles Wesley Chesterman & Bennie Wyatt Troxel (1961), Tephroite in California manganese deposits: Economic Geology: 56: 41; Pemberton, H. Earl (1983), Minerals of California: 173.
Quartz
Formula: SiO2
Localities: Reported from at least 11 localities in this region.
Rhodochrosite
Formula: MnCO3
Rhodonite
Formula: Mn2+SiO3
Silver
Formula: Ag
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Sonolite
Formula: Mn2+9(SiO4)4(OH)2
Reference: Huebner, J. Stephen; Flohr, Marta J. (1990) Microbanded manganese formations; protoliths in the Franciscan Complex, California; USGS Professional Paper 1502.
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Huebner, J. Stephen; Flohr, Marta J. (1990) Microbanded manganese formations; protoliths in the Franciscan Complex, California; USGS Professional Paper 1502.
Sphalerite
Formula: ZnS
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Tephroite
Formula: Mn2+2SiO4
'Wad'
Reference: Econ Geol (1992) 87:2023-2040

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Galena2.CD.10PbS
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Hausmannite4.BB.10Mn2+Mn3+2O4
Hematite4.CB.05Fe2O3
Jacobsite4.BB.05Mn2+Fe3+2O4
Manganite4.FD.15Mn3+O(OH)
Pyrolusite4.DB.05Mn4+O2
Pyrophanite4.CB.05Mn2+TiO3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
var: Manganoan Calcite5.AB.05(Ca,Mn)CO3
Malachite5.BA.10Cu2(CO3)(OH)2
Rhodochrosite5.AB.05MnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 9 - Silicates
Bementite9.EE.05Mn7Si6O15(OH)8
Caryopilite9.ED.15Mn2+3Si2O5(OH)4
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Neotocite9.ED.20(Mn,Fe,Mg)SiO3 · H2O
Rhodonite9.DK.05Mn2+SiO3
Sonolite9.AF.55Mn2+9(SiO4)4(OH)2
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Tephroite9.AC.05Mn2+2SiO4
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Limonite'-(Fe,O,OH,H2O)
'Manganese Oxides'-
'Psilomelane'-Mn, O
'Wad'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Silver1.1.1.2Ag
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
A2X3
Hematite4.3.1.2Fe2O3
Pyrophanite4.3.5.3Mn2+TiO3
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Manganite6.1.3.1Mn3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Hausmannite7.2.7.1Mn2+Mn3+2O4
Jacobsite7.2.2.2Mn2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Rhodochrosite14.1.1.4MnCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Tephroite51.3.1.4Mn2+2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Sonolite52.3.2d.3Mn2+9(SiO4)4(OH)2
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=5
Rhodonite65.4.1.1Mn2+SiO3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Caryopilite71.1.2b.1Mn2+3Si2O5(OH)4
Neotocite71.1.5.4(Mn,Fe,Mg)SiO3 · H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 78 - Unclassified Silicates
Bementite78.5.2.1Mn7Si6O15(OH)8
Unclassified Minerals, Mixtures, etc.
Calcite
var: Manganoan Calcite
-(Ca,Mn)CO3
'Chlorite Group'-
Kaolinite-Al2(Si2O5)(OH)4
'Limonite'-(Fe,O,OH,H2O)
'Manganese Oxides'-
'Psilomelane'-Mn, O
'Wad'-

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H MalachiteCu2(CO3)(OH)2
H ManganiteMn3+O(OH)
H Limonite(Fe,O,OH,H2O)
H CaryopiliteMn32+Si2O5(OH)4
H BementiteMn7Si6O15(OH)8
H SonoliteMn92+(SiO4)4(OH)2
H Neotocite(Mn,Fe,Mg)SiO3 · H2O
H KaoliniteAl2(Si2O5)(OH)4
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
C RhodochrositeMnCO3
C Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
OOxygen
O TephroiteMn22+SiO4
O BaryteBaSO4
O QuartzSiO2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O CalciteCaCO3
O MalachiteCu2(CO3)(OH)2
O PyrolusiteMn4+O2
O ManganiteMn3+O(OH)
O RhodoniteMn2+SiO3
O RhodochrositeMnCO3
O PsilomelaneMn, O
O Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
O JacobsiteMn2+Fe23+O4
O HausmanniteMn2+Mn23+O4
O Limonite(Fe,O,OH,H2O)
O CaryopiliteMn32+Si2O5(OH)4
O PyrophaniteMn2+TiO3
O BementiteMn7Si6O15(OH)8
O CupriteCu2O
O SpessartineMn32+Al2(SiO4)3
O SonoliteMn92+(SiO4)4(OH)2
O Neotocite(Mn,Fe,Mg)SiO3 · H2O
O HematiteFe2O3
O KaoliniteAl2(Si2O5)(OH)4
MgMagnesium
Mg Neotocite(Mn,Fe,Mg)SiO3 · H2O
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al SpessartineMn32+Al2(SiO4)3
Al KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Si TephroiteMn22+SiO4
Si QuartzSiO2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si RhodoniteMn2+SiO3
Si CaryopiliteMn32+Si2O5(OH)4
Si BementiteMn7Si6O15(OH)8
Si SpessartineMn32+Al2(SiO4)3
Si SonoliteMn92+(SiO4)4(OH)2
Si Neotocite(Mn,Fe,Mg)SiO3 · H2O
Si KaoliniteAl2(Si2O5)(OH)4
SSulfur
S BaryteBaSO4
S PyriteFeS2
S GalenaPbS
S SphaleriteZnS
S ChalcopyriteCuFeS2
S BorniteCu5FeS4
S ChalcociteCu2S
S CovelliteCuS
S MarcasiteFeS2
CaCalcium
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca CalciteCaCO3
Ca Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
TiTitanium
Ti PyrophaniteMn2+TiO3
MnManganese
Mn TephroiteMn22+SiO4
Mn PyrolusiteMn4+O2
Mn ManganiteMn3+O(OH)
Mn RhodoniteMn2+SiO3
Mn RhodochrositeMnCO3
Mn PsilomelaneMn, O
Mn Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
Mn JacobsiteMn2+Fe23+O4
Mn HausmanniteMn2+Mn23+O4
Mn CaryopiliteMn32+Si2O5(OH)4
Mn PyrophaniteMn2+TiO3
Mn BementiteMn7Si6O15(OH)8
Mn SpessartineMn32+Al2(SiO4)3
Mn SonoliteMn92+(SiO4)4(OH)2
Mn Neotocite(Mn,Fe,Mg)SiO3 · H2O
FeIron
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe BorniteCu5FeS4
Fe JacobsiteMn2+Fe23+O4
Fe Limonite(Fe,O,OH,H2O)
Fe MarcasiteFeS2
Fe Neotocite(Mn,Fe,Mg)SiO3 · H2O
Fe HematiteFe2O3
CuCopper
Cu ChalcopyriteCuFeS2
Cu BorniteCu5FeS4
Cu MalachiteCu2(CO3)(OH)2
Cu ChalcociteCu2S
Cu CovelliteCuS
Cu CupriteCu2O
ZnZinc
Zn SphaleriteZnS
AgSilver
Ag SilverAg
BaBarium
Ba BaryteBaSO4
AuGold
Au GoldAu
PbLead
Pb GalenaPbS

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10031668, 10031675.

Localities in this Region


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