The Black Oak Cassiorini is a chromium mine located in El Dorado county, California.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Black Oak Cassiorini MRDS details
Site Name
Primary: Black Oak Cassiorini
Commodity
Primary: Chromium
Location
State: California
County: El Dorado
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Russell Wilson
Years: 1942 - 1943
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chromite
Comments
Comment (Deposit): SMALL AMOUNTS OF UVAROVITE AND KAMMERERITE ARE PRESENT IN THE ORE.
Comment (Production): ACTIVE 1918 WHEN 36 TONS OF ORE WERE PRODUCED AND IN 1942-43 WHEN 107 TONS OF 47.5 PERCENT CR PRODUCED. RESERVES ARE UNDOUBTEDLY SMALL.
Comment (Workings): OPEN CUTS AND THREE 40-FT. SHAFTS.
References
Reference (Deposit): CALIF. JOUR. MINES & GEOL. V. 52, NO. 4, P. 465
Reference (Deposit): DOM BULL. 134, PT. 3, CHAP. 4, P. 161
California Gold
"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.
