Precious Opal from Rocky Mountains, North America
USA | |
| Extra Lapis - English No. 10 Opal |
Extra Lapis - English No. 10 Opal | |
| Christopher Wentzell collection (2020) and personally verified on site (2020) |
| Extra Lapis - English No. 10 Opal |
USA | |
| Extra Lapis - English No. 10 Opal |
Extra Lapis - English No. 10 Opal | |
| Christopher Wentzell collection (2020) and personally verified on site (2020) |
| Extra Lapis - English No. 10 Opal |
Spencer Opal Mine, Spencer, Clark County, Idaho, USA