Iron-Platinum alloy from Humboldt County, California, USA
USA | |
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Van Nostrand Reinholt Press: 63. |
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Mertie, J.B. (1969) Economic geology of the platinum metals. USGS Professional Paper 630, 120 pp.: 94 Logan, Clarence August (1918), Platinum and allied metals in California: California Mining Bureau. Bulletin 85, 120 pp.: 65, 109 Van Nostrand Reinholt Press: 41. |