| Lat / long: | 37.40214, -121.42046 |
| Primary: | Chromium |
| Tertiary: | Platinum, Palladium, Iridium, Ruthenium, Rhodium |
| Ore: | Chromite |
| Gangue: | Olivine, Serpentine |
| Orebody form: | LENSES, PODS OF GRANULAR AND MASSIVE CHROMITE TO 2 FT THICK |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1918 |
| Host rock: | Franciscan Formation |
| Host type: | Dunite |
| Associated rock: | Coast Range (Del Puerto) Ophiolite |
| Associated type: | Gabbro,Peridotite |
| Structure: | Shear Zone Trending N80e |
| Tectonic: | California Coast Ranges |
| Alteration processes: | Ultramafic Rocks Serpentinized |
| MRDS | M100179 |
| DEP | 10043424 |
| Reference | {Deposit:: WALKER, G.W., AND GRIGGS, A.B., 1953, GEOLOGICAL INVESTIGATIONS OF CHROMITE IN CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 134, PT. 2, CH. 2, P. 74, 76, 88.}{Deposit:: CARLSON, C.A., AND OTHERS, 1985, ANALYSES FOR PLATINUM-GROUP ELEMENTS IN SAMPLES FROM PODIFORM CHROMITE DEPOSITS, CALIFORNIA AND OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-442, 14 P.} |
| Reporter | Oster, Karel L. (Albers, John P.), Peterson, Jocelyn A. |