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Peirano Ranch Commercial Mineral and Mining Co. Mine, Sugarloaf Hill, Vallecito Mining District, Calaveras County, California, USAi
Regional Level Types
Peirano Ranch Commercial Mineral and Mining Co. MineMine
Sugarloaf HillHill
Vallecito Mining DistrictMining District
Calaveras CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
38° 3' 8'' North , 120° 29' 48'' West
Latitude & Longitude (decimal):
38.05222,-120.49667
GeoHash:
G#: 9qf26p1n2
GRN:
N26W68
Type:
Mine
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Angels Camp2,677 (2012)4.2km
Vallecito442 (2011)4.7km
Tuttletown668 (2011)7.5km
Columbia2,297 (2017)8.5km
Murphys2,213 (2015)10.0km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Calaveras Gem & Mineral SocietyAngels Camp, California4km
Amador County Gem & Mineral SocietySutter Creek, California46km
Mindat Locality ID:
263453
Long-form identifier:
mindat:1:2:263453:4
GUID (UUID V4):
0


A former talc mine located in the SE¼ sec. 1, T2N, R13E, MDM, 2.8 km (1.7 miles) W of Sugarloaf Hill (coordinates of record), and 2.6 km (1.6 miles) NNE of Carson Hill (town). MRDS database accuracy for this location is not stated.

Mineralization is a talc/soapstone deposit. Most of the rock has been mapped as ankerite-talc schist. Local rocks include pre-Cenozoic metasedimentary and metavolcanic rocks undivided. .

Several tons of production. The deposit was worked for a few months in 1925. Now idle and all equipment removed.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


2 valid minerals.

Detailed Mineral List:

ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Description: Occurs as ankerite-talc schist.
ⓘ Talc
Formula: Mg3Si4O10(OH)2
Description: Occurs as ankerite-talc schist.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Group 9 - Silicates
ⓘTalc9.EC.05Mg3Si4O10(OH)2

List of minerals for each chemical element

HHydrogen
Hⓘ TalcMg3Si4O10(OH)2
CCarbon
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
OOxygen
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ TalcMg3Si4O10(OH)2
MgMagnesium
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ TalcMg3Si4O10(OH)2
SiSilicon
Siⓘ TalcMg3Si4O10(OH)2
CaCalcium
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
FeIron
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2

Other Databases

Link to USGS MRDS:10109165

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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

Logan, Clarence August (1925), Sacramento field division: California Mining Bureau. (Report 21): 21(2): 171.
Logan, Clarence August and Franke, H. (1936), Mines and Mineral Resources of Calaveras Co.: California Division of Mines, California Journal of Mines & Geology, California Division of Mines (Report 32): 32(3): 235.
Eric, John H. (1955) Geology and mineral deposits of the Angels Camp and Sonora quadrangles, Calaveras and Tuolumne Counties, California. Special Report 41. California Division of Mines pages 45, 52, plate 3
Clark, L.D., Stromquist, A.A., and Tatlock, D.B. (1963), Geologic Map of the San Andreas Quadrangle, Calaveras County, California, USGS Geologic Quadrangle Map GQ-222, scale 1:62,500.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
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