11btgb.iss ((SPHALERITE)), Fluorescent, Triboluminescent, $85 MINIMUM BID, Horn Silver Mine, Frisco, Beaver County, Utah, 3 x 3 x 2.5 cm, Miniature | |
Rare specimen with unique Sphalerite to the locality. Mine is totally unsafe for collecting with a deep shaft to access the workings. ex Glenn Brown collection. |