Magnesiochromite from selected localities.
USA | |
| Dunning, Gail, The Challenge Mercury Deposit, Redwood City, San Mateo County, California., BAM Journal, Vol. 9 No. 1. |
In the collection of Brent Thorne. |
USA | |
| Dunning, Gail, The Challenge Mercury Deposit, Redwood City, San Mateo County, California., BAM Journal, Vol. 9 No. 1. |
In the collection of Brent Thorne. |
Farm Hill No. 2 Mine, Redwood City, San Mateo County, California, USA