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Shingle Springs Mining District, West Belt, El Dorado Co., California, USAi
Regional Level Types
Shingle Springs Mining DistrictMining District
West Belt- not defined -
El Dorado Co.County
CaliforniaState
USACountry

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Key
06477640015190105572895.jpg
Quartz

Shingle Springs Mining District, West Belt, El Dorado Co., California, USA
05281980014946674898535.jpg
Quartz

Shingle Springs Mine, Shingle Springs, Shingle Springs Mining District, West Belt, El Dorado Co., California, USA
02565290014947912445227.jpg
Quartz, etc.

Shingle Springs Mine, Shingle Springs, Shingle Springs Mining District, West Belt, El Dorado Co., California, USA
04599430015188041292744.jpg
Quartz

Shingle Springs Mining District, West Belt, El Dorado Co., California, USA
05281980014946674898535.jpg
Quartz

Shingle Springs Mine, Shingle Springs, Shingle Springs Mining District, West Belt, El Dorado Co., California, USA
02565290014947912445227.jpg
Quartz, etc.

Shingle Springs Mine, Shingle Springs, Shingle Springs Mining District, West Belt, El Dorado Co., California, USA
08548340015190105583065.jpg
Quartz

Shingle Springs Mining District, West Belt, El Dorado Co., California, USA
05281980014946674898535.jpg
Quartz

Shingle Springs Mine, Shingle Springs, Shingle Springs Mining District, West Belt, El Dorado Co., California, USA
Latitude & Longitude (WGS84):
38° North , 120° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~14km
GRN:
N26W68
Locality type:
Mining District
Köppen climate type:
Csa : Hot-summer Mediterranean climate


Location and History: This district is in the Sierra Nevada west gold belt in western El Dorado County. A belt of lode-gold mines extends from the Pyramid mine south through Shingle Springs to the vicinity of Brandon Corner, a distance of 10 miles. The district was first worked during the gold rush. The town was settled in 1850; the name derived from "a shingle machine used at a cluster of springs". There was extensive mining activity here during the 1930's.

Geology and Ore Deposits: A north-trending belt of greenstone, green schist, and slate four to six miles wide, which has been intruded by numerous serpentine bodies, both large and small, extends through the central part of the district. A granodiorite-gabbro intrusion lies to the west. The ore deposits consist chiefly of large but low-grade bodies of mineralized talcose, amphibolite-chlorite schist or greenstone with numerous quartz veinlets and stringers. The values occur in disseminated auriferous pyrite found in both the wall rock and the quartz veins and stringers. The ore bodies commonly are found in both the wall rock and the quartz. Some quartz veins with high-grade pockets and abundant sulfides exist. Some of the deposits were
mined by open-pit methods.

Mines: Big Canyon ($3 million+), Brandon, Bugtown, Crystal $100,000+), French Creek, Greenstone, Marcelias, Pyramid ($1 million), Sugar Loaf, and Vandalia ($100,000+).

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Nash, J. Thomas (1988) Geology and geochemistry of gold deposits of the Big Canyon area, El Dorado County, California USGS Bull 1854
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10006918.
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcocite
Formula: Cu2S
Reference: Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 129.
ⓘ Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 6 localities in this region.
ⓘ Chromite
Formula: Fe2+Cr3+2O4
Localities: Reported from at least 10 localities in this region.
ⓘ Cinnabar
Formula: HgS
Description: Occurs interstitially in slate and quartzite.
Reference: Clark, Wm. B. & D.W. Carlson (1956), Mines and mineral resources of El Dorado County, California: California Journal of Mines and Geology: 52(4): 438; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 114.
ⓘ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Cater, F.W., Jr., G.A. Rynearson & D.H. Dow (1951), Chromite deposits of El Dorado County, California: California Division Mines Bulletin 134, part III, Chapter 4: 122-162; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 434.
ⓘ Clinochlore var: Chromian Clinochlore
Formula: Mg5(Al,Cr)2Si3O10(OH)8
Reference: Cater, F.W., Jr., G.A. Rynearson & D.H. Dow (1951), Chromite deposits of El Dorado County, California: California Division Mines Bulletin 134, part III, Chapter 4: 122-162; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 434.
ⓘ Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
ⓘ 'Feldspar Group'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Galena
Formula: PbS
ⓘ Gold
Formula: Au
Localities: Reported from at least 45 localities in this region.
ⓘ Hematite
Formula: Fe2O3
ⓘ Hematite var: Specularite
Formula: Fe2O3
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10029902.
ⓘ Hessite
Formula: Ag2Te
Reference: Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 218.
ⓘ Iron
Formula: Fe
Reference: Goldstein, J.I. and Short, J.M. (1967) The iron meteorites, their thermal history and parent bodies. Geochimica et Cosmochimica Acta: 31: 1743; Goldstein, J.I. (1969) The classification of iron meteorites. In: P.M. Millman (Editor), Meteorite Research, D. Reidel, Dordecht-Holland: 736; Schaudy, R., Wasson, J.T., and Buchwald, V.F. (1972) The chemical classification of iron meteorites, VI. A reinvestigation of irons with Ge concentrations lower than 1 ppm. Icarus: 17: 174-192; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 58-59.
ⓘ Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Goldstein, J.I. and Short, J.M. (1967) The iron meteorites, their thermal history and parent bodies. Geochimica et Cosmochimica Acta: 31: 1743; Goldstein, J.I. (1969) The classification of iron meteorites. In: P.M. Millman (Editor), Meteorite Research, D. Reidel, Dordecht-Holland: 736; Schaudy, R., Wasson, J.T., and Buchwald, V.F. (1972) The chemical classification of iron meteorites, VI. A reinvestigation of irons with Ge concentrations lower than 1 ppm. Icarus: 17: 174-192; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 58-59.
ⓘ 'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Nash, J. Thomas (1988) Geology and geochemistry of gold deposits of the Big Canyon area, El Dorado County, California USGS Bull 1854.
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Molybdenite
Formula: MoS2
Reference: Clark, Wm. B. & D.W. Carlson (1956), Mines and mineral resources of El Dorado County, California: California Journal of Mines and Geology: 52(4): 394; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 79.
ⓘ Pyrite
Formula: FeS2
Localities: Reported from at least 11 localities in this region.
ⓘ Pyrite var: Auriferous Pyrite
Formula: FeS2
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10006918.
ⓘ Pyrrhotite
Formula: Fe7S8
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Nash, J. Thomas (1988) Geology and geochemistry of gold deposits of the Big Canyon area, El Dorado County, California USGS Bull 1854
06632680014956637953318.jpg
Quartz

Shingle Springs Mine, Shingle Springs, Shingle Springs Mining District, West Belt, El Dorado Co., California, USA
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 34 localities in this region.
ⓘ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Reference: Nash, J. Thomas (1988) Geology and geochemistry of gold deposits of the Big Canyon area, El Dorado County, California USGS Bull 1854.
ⓘ Rutile
Formula: TiO2
Reference: Nash, J. Thomas (1988) Geology and geochemistry of gold deposits of the Big Canyon area, El Dorado County, California USGS Bull 1854
ⓘ Schreibersite ?
Formula: (Fe,Ni)3P
Description: Small, silvery particles.
Reference: Goldstein, J.I. and Short, J.M. (1967) The iron meteorites, their thermal history and parent bodies. Geochimica et Cosmochimica Acta: 31: 1743; Goldstein, J.I. (1969) The classification of iron meteorites. In: P.M. Millman (Editor), Meteorite Research, D. Reidel, Dordecht-Holland: 736; Schaudy, R., Wasson, J.T., and Buchwald, V.F. (1972) The chemical classification of iron meteorites, VI. A reinvestigation of irons with Ge concentrations lower than 1 ppm. Icarus: 17: 174-192; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 58-59.
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
ⓘ 'Silica'
ⓘ 'Soapstone'
ⓘ Sphalerite
Formula: ZnS
ⓘ Stibnite
Formula: Sb2S3
Reference: Clark, Wm. B. & D.W. Carlson (1956), Mines and mineral resources of El Dorado County, California: California Journal of Mines and Geology: 52(4): 415; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 127.
ⓘ Taenite
Formula: (Fe,Ni)
Reference: Goldstein, J.I. and Short, J.M. (1967) The iron meteorites, their thermal history and parent bodies. Geochimica et Cosmochimica Acta: 31: 1743; Goldstein, J.I. (1969) The classification of iron meteorites. In: P.M. Millman (Editor), Meteorite Research, D. Reidel, Dordecht-Holland: 736; Schaudy, R., Wasson, J.T., and Buchwald, V.F. (1972) The chemical classification of iron meteorites, VI. A reinvestigation of irons with Ge concentrations lower than 1 ppm. Icarus: 17: 174-192; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 58-59.
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ Titanite
Formula: CaTi(SiO4)O
Reference: Nash, J. Thomas (1988) Geology and geochemistry of gold deposits of the Big Canyon area, El Dorado County, California USGS Bull 1854

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGold1.AA.05Au
ⓘIron1.AE.05Fe
ⓘvar: Kamacite1.AE.05(Fe,Ni)
ⓘSchreibersite ?1.BD.05(Fe,Ni)3P
ⓘTaenite1.AE.10(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
ⓘArsenopyrite2.EB.20FeAsS
ⓘBornite2.BA.15Cu5FeS4
ⓘChalcocite2.BA.05Cu2S
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘCinnabar2.CD.15aHgS
ⓘGalena2.CD.10PbS
ⓘHessite2.BA.60Ag2Te
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘvar: Auriferous Pyrite2.EB.05aFeS2
ⓘPyrrhotite2.CC.10Fe7S8
ⓘSphalerite2.CB.05aZnS
ⓘStibnite2.DB.05Sb2S3
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘvar: Specularite4.CB.05Fe2O3
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘQuartz4.DA.05SiO2
ⓘRutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
ⓘCalcite5.AB.05CaCO3
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
ⓘActinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘClinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘvar: Chromian Clinochlore9.EC.55Mg5(Al,Cr)2Si3O10(OH)8
ⓘEpidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
ⓘRiebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘTitanite9.AG.15CaTi(SiO4)O
Unclassified Minerals, Rocks, etc.
ⓘ'Feldspar Group'-
ⓘ'Limonite'-(Fe,O,OH,H2O)
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
ⓘ'Silica'-
ⓘ'Soapstone'-

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
ⓘIron
var: Kamacite		1.1.11.1(Fe,Ni)
ⓘSchreibersite ?1.1.21.2(Fe,Ni)3P
ⓘTaenite1.1.11.2(Fe,Ni)
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
ⓘChalcocite2.4.7.1Cu2S
ⓘHessite2.4.2.1Ag2Te
AmBnXp, with (m+n):p = 3:2
ⓘBornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
ⓘCinnabar2.8.14.1HgS
ⓘGalena2.8.1.1PbS
ⓘPyrrhotite2.8.10.1Fe7S8
ⓘSphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
ⓘChalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
ⓘStibnite2.11.2.1Sb2S3
AmBnXp, with (m+n):p = 1:2
ⓘArsenopyrite2.12.4.1FeAsS
ⓘMolybdenite2.12.10.1MoS2
ⓘPyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
ⓘHematite4.3.1.2Fe2O3
AX2
ⓘRutile4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
ⓘChromite7.2.3.3Fe2+Cr3+2O4
ⓘMagnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
ⓘCalcite14.1.1.1CaCO3
AB(XO3)2
ⓘAnkerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
ⓘMalachite16a.3.1.1Cu2(CO3)(OH)2
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
ⓘTitanite52.4.3.1CaTi(SiO4)O
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 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
ⓘTalc71.2.1.3Mg3Si4O10(OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
ⓘClinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
ⓘQuartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
ⓘAlbite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
ⓘActinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
ⓘClinochlore
var: Chromian Clinochlore		-Mg5(Al,Cr)2Si3O10(OH)8
ⓘ'Feldspar Group'-
ⓘHematite
var: Specularite		-Fe2O3
ⓘIron-Fe
ⓘ'Limonite'-(Fe,O,OH,H2O)
ⓘPyrite
var: Auriferous Pyrite		-FeS2
ⓘRiebeckite-◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
ⓘ'Silica'-
ⓘ'Soapstone'-

List of minerals for each chemical element

HHydrogen
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Hⓘ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Hⓘ Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Hⓘ Limonite(Fe,O,OH,H2O)
Hⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Hⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
CCarbon
Cⓘ CalciteCaCO3
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
OOxygen
Oⓘ QuartzSiO2
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ CalciteCaCO3
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Oⓘ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Oⓘ Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Oⓘ HematiteFe2O3
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ RutileTiO2
Oⓘ Limonite(Fe,O,OH,H2O)
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ Hematite (var: Specularite)Fe2O3
Oⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
MgMagnesium
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Mgⓘ Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Mgⓘ Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Alⓘ Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Alⓘ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Alⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
SiSilicon
Siⓘ QuartzSiO2
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Siⓘ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Siⓘ Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
PPhosphorus
Pⓘ Schreibersite(Fe,Ni)3P
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ CinnabarHgS
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe7S8
Sⓘ ChalcopyriteCuFeS2
Sⓘ StibniteSb2S3
Sⓘ GalenaPbS
Sⓘ MolybdeniteMoS2
Sⓘ SphaleriteZnS
Sⓘ ChalcociteCu2S
Sⓘ Pyrite (var: Auriferous Pyrite)FeS2
Sⓘ ArsenopyriteFeAsS
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Caⓘ Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
TiTitanium
Tiⓘ TitaniteCaTi(SiO4)O
Tiⓘ RutileTiO2
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
Crⓘ Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
MnManganese
Mnⓘ Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe7S8
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ ChalcopyriteCuFeS2
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Feⓘ Iron (var: Kamacite)(Fe,Ni)
Feⓘ Taenite(Fe,Ni)
Feⓘ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Feⓘ Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Feⓘ HematiteFe2O3
Feⓘ Limonite(Fe,O,OH,H2O)
Feⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Feⓘ Pyrite (var: Auriferous Pyrite)FeS2
Feⓘ ArsenopyriteFeAsS
Feⓘ Hematite (var: Specularite)Fe2O3
Feⓘ IronFe
Feⓘ Schreibersite(Fe,Ni)3P
NiNickel
Niⓘ Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Niⓘ Iron (var: Kamacite)(Fe,Ni)
Niⓘ Taenite(Fe,Ni)
Niⓘ Schreibersite(Fe,Ni)3P
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ ChalcociteCu2S
ZnZinc
Znⓘ SphaleriteZnS
Znⓘ Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
AsArsenic
Asⓘ ArsenopyriteFeAsS
MoMolybdenum
Moⓘ MolybdeniteMoS2
AgSilver
Agⓘ HessiteAg2Te
SbAntimony
Sbⓘ StibniteSb2S3
TeTellurium
Teⓘ HessiteAg2Te
AuGold
Auⓘ GoldAu
HgMercury
Hgⓘ CinnabarHgS
PbLead
Pbⓘ GalenaPbS

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Irelan, William, Jr. (1888b), Eighth annual report of the State Mineralogist [includes mineral resources of the State, with contributions by W.A. Goodyear, H.A. Whiting, and Stephen Bowers]: California Mining Bureau. (Report 8), 946 pp.
Lindgren, Waldemar & Henry Ward Turner (1894), Description of the gold belt, California; description of the Placerville sheet: USGS Geol. Atlas, Placerville folio (Folio No. 3) 3 pp.; […(abstract): Jour. Geol.: 4: 248-250 (1896)].
Logan, Clarence August (1938), Mineral resources of El Dorado County: California Journal of Mines and Geology, California Division Mines (Report 34): 34(3): 219-223, 244-246, 254.
Clark, Wm. B. & D.W. Carlson (1956), Mines and mineral resources of El Dorado County, California: California Journal of Mines and Geology: 52(4): 401-429.
Clark, Wm. B. (1970a) Gold districts of California: California Division Mines & Geology Bulletin 193: 117.

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