Gold Mine. The gold/quartz veins occur in the sedimentary rocks close to the contact with serpentinite. Mariposite is often in association with the serpentine, and in close proximity to the gold.
Chromite Mine. The Chromite occurs in lenses and pods in the serpentine, close to the contact with the sedimentary rocks. Chromite was produced from the Red Ledge in the 1918-19 time period. The ore grade was 45%.
[Note: not to be confused with Red Ledge mine in Sierra Co.]
Refs.:
- Rocks & Minerals: 14: 337.
- Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume I, John Wiley & Sons, New York: 559.
- Murdoch and Webb, Minerals of California, Centennial Volume (1866-1966) California Division of Mines and Geology Bulletin 189: 203.
- Bancroft, Peter (1973) The World's Finest Minerals and Crystals. Viking Press: 154.
- Bancroft, Peter (1984) Gem and Crystal Treasures. Western Enterprises, Mineralogical Record: 89.
|
|
Map Reference: 39°21'N , 120°48'W
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.
|
Mineral List:14 entries listed. 13 valid minerals. 1 type locality (valid mineral).
The above list 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!
