Tanzanite (gem blue Zoisite)
Merelani, Umba Valley, Lelatama Mountains, Arusha Region
2.2 x 1.4 x 1.1 CM (thumbnail)
A Tanzanite crystal with excellent color change. This is well terminated, glassy deep blue to purple crystal in good condition. The tip of the termination is especially transparent and shows a nice blue "cloud" inside. The backside of the crystal shows a more complex area that has stepped faces and is likely a recrystallized contact. A nice specimen of the specie that is reasonably priced
Enargite -Classic locale
Leonard Mine, 3800 foot level, Butte
5.2 x 4.8 x 3.9 CM (small cabinet/ large miniature)
A cluster of unusually bright, lustrous and sharp Enargite crystals with a few small Pyrite and Quartz on the edges. In excellent undamaged condition with Enargites free standing up to 1.7 CM. A choice, classic Leonard Mine (Butte, Montana) specimen from the golden age of mining there. The flashy luster on this black Copper Sulphide is quite esthetic (and even attractive for a black mineral)compared with the more usual sooty black specimens.