21hhdw.is ((KERNITE)), $35 MINIMUM BID, U.S. Borax open pit, U.S. Borax Mine, Kramer Borate deposit, Boron, Kern Co., California, 19 x 6 x 4 cm, Large Cabinet | |
Large crystal block of Kernite covered with a layer of white Tincalconite. Older specimen 20 to 30 years + out of the Dana Wilson MD collection. Kernite is translucent but the outer edge pseudomorphs, alters, to white opaque Tincalconite. ex Dana Wilson MD collection #726 |