|
USA | |
- Fiddletown Mining District (Oleta Mining District)
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
|
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 282 |
|
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 282
Stoddard, B.H. (1923), Gems and precious stones Mineral Resources U.S., 1920, part 2: 215-218 |
|
| Matthew Stanley Collection |
|
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
|
| Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
|
| Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
|
| Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
|
| MacFall (1975) Gem Hunter's Guide |
|
| The Mineralogist, v. 9, no. 5, p. 181. |
|
| Extra Lapis - English No. 10 Opal |
White Rock Mine, Chinese Station, Tuolumne County, California, USA