Opal from Mother Lode Belt, California, USA
USA | |
| Dana 7:I:206 Dana 6: 1095. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Pisciotta, Len (2019) White grossular from near the Stifle claim, Georgetown, El Dorado County, California. The Mineralogical Record, 50 (6) 713-717 |
| [var. Common Opal] Matthew Stanley Collection |
White Rock Mine, Chinese Station, Tuolumne County, California, USA