6614 96hhshis ((BIRNESSITE on CALCITE)), $10 MINIMUM BID, Gold Hill Mine, Tooele County, Utah, 5 x 3.5 x 2.5 cm, Miniature | |
Here is an undamaged cornucopia of white Calcite with microcrystalline black Birnessite a rare species. ex Solon Hammack specimen, active in the 70's and 80's and early 90"s finding Utah specimens. |