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Calaveritas Mining District, East Belt, Calaveras Co., California, USAi
Regional Level Types
Calaveritas Mining DistrictMining District
East Belt- not defined -
Calaveras Co.County
CaliforniaState
USACountry

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Key
Latitude & Longitude (WGS84):
38° North , 120° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~7km
Locality type:


Location
This is a placer-mining district in central Calaveras County, in the vicinity of the old town of Calaveritas. It includes the Old Gulch area to the north. At one time there were many Mexican miners in the area.

Geology
The district is underlain by slate, graphitic schist, quartzite, limestone, green schist and granodiorite. Numerous gravel patches, remnants of the west-trending Fort Mountain channel of Tertiary age, were mined by hydraulic king and sluicing during the early days. The recent stream gravels were worked by dragline dredges during the 1930s. There are a few narrow gold-quartz veins.

Mines
Barnhardt, Calaveritas Hill Consolidated, Oro Fino, Railroad Hill, Richie Hill.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

9 valid minerals.

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10029485.
Erythrite
Formula: Co3(AsO4)2 · 8H2O
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10029485.
Freibergite
Formula: (Ag,Cu,◻)10Fe2+2Sb4S12
Description: Occurs disseminated in Quartz.
Reference: Hanks, Henry Garber (1886), Sixth report of the State Mineralogist: California Mining Bureau. Report 6 part 1, 145 pp.: 138; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 363.
Galena
Formula: PbS
Gold
Formula: Au
Localities: Reported from at least 34 localities in this region.
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Localities: Reported from at least 10 localities in this region.
Skutterudite
Formula: CoAs3
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10029485.
Sphalerite
Formula: ZnS

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Freibergite2.GB.05(Ag,Cu,◻)10Fe2+2Sb4S12
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Skutterudite2.EC.05CoAs3
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
Erythrite8.CE.40Co3(AsO4)2 · 8H2O

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
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Skutterudite2.12.17.1CoAs3
Group 3 - SULFOSALTS
3 <ø < 4
Freibergite3.3.6.3(Ag,Cu,◻)10Fe2+2Sb4S12
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
A3(XO4)2·xH2O
Erythrite40.3.6.3Co3(AsO4)2 · 8H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H ErythriteCo3(AsO4)2 · 8H2O
OOxygen
O QuartzSiO2
O ErythriteCo3(AsO4)2 · 8H2O
SiSilicon
Si QuartzSiO2
SSulfur
S PyriteFeS2
S SphaleriteZnS
S GalenaPbS
S Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
S ArsenopyriteFeAsS
FeIron
Fe PyriteFeS2
Fe Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
Fe ArsenopyriteFeAsS
CoCobalt
Co SkutteruditeCoAs3
Co ErythriteCo3(AsO4)2 · 8H2O
CuCopper
Cu Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
ZnZinc
Zn SphaleriteZnS
AsArsenic
As SkutteruditeCoAs3
As ErythriteCo3(AsO4)2 · 8H2O
As ArsenopyriteFeAsS
AgSilver
Ag Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
SbAntimony
Sb Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
AuGold
Au GoldAu
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Clark, L D. (1954), Geology and mineral deposits of the Calaveritas quadrangle: California Division of Mines Special Report 40, 23 pp.
Clark, W. B., and Lydon, P. A. (1962), Calaveras County, placer gold: California Division of Mines and Geology County Report 2, pp. 76-93.
Clark, Wm. B. (1970a) Gold districts of California: California Division Mines & Geology Bulletin 193: 33.

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