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Courtwright property (Woods and Roach lease), Sunnybrook, Pardee Mining District, Amador County, California, USAi
Regional Level Types
Courtwright property (Woods and Roach lease)Property
SunnybrookResidential Area
Pardee Mining DistrictMining District
Amador CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
38° 19' 46'' North , 120° 51' 55'' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Buena Vista429 (2011)5.7km
Ione7,000 (2017)6.4km
Martell282 (2011)7.3km
Jackson4,649 (2017)8.2km
Sutter Creek2,488 (2017)8.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Amador County Gem & Mineral SocietySutter Creek, California9km
Calaveras Gem & Mineral SocietyAngels Camp, California41km
El Dorado County Mineral and Gem SocietyPlacerville, California45km
Gold Country Treasure SeekersPlacerville, California45km
Mindat Locality ID:
73556
Long-form identifier:
mindat:1:2:73556:1
GUID (UUID V4):
5c395c68-1265-445b-b8bc-67ad81d5c5be


A former Cr occurrence/mine located in the NE¼SW¼ sec. 34, T6N, R10E, MDM, 1.8 km (1.1 miles) SE of Sunnybrook, E and S of Mountain Spring Creek, on private land. Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains). Owned by Emma Garibaldi (1953). MRDS database stated accuracy for this location is 1,000 meters.

Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).

Workings include surface and underground openings comprised of 2 shafts at 30 and 32 feet deep, plus several trenches.

Past production has been 80 tons of 38 to 40% ore. About 5 or 6 tons of ore in sight and 8 tons of 38% ore on the dump. A small pit 300 yards SE of the shaft has had about ½ ton of ore removed ans a small amount of low-grade ore is in sight. Between the two workings there are occasional small lenes of ore, the largest of which would not contain more than 50 pounds of ore.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


1 valid mineral.

Detailed Mineral List:

Chromite
Formula: Fe2+Cr3+2O4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4

List of minerals for each chemical element

OOxygen
O ChromiteFe2+Cr23+O4
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe ChromiteFe2+Cr23+O4

Other Databases

Link to USGS MRDS:10028092

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate
USA

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

 
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