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libutron: Dioptase by usageology on Flickr. Locality: Tantara Mine, Kakounde, Likasi, Shaba Congo D.R. Size: Specimen is 1.2 inches tall. mineralia
libutron: Epidote Crystals on Hematinic Quartz Cluster | ?Hummingbird Minerals Hongxi, Meigu County, Sichuan Province, China. Geology Nerd
libutron: Papagoite in Quartz | ?Fine Mineral Galleries | iRocks.com Messina Mine, Transvaal, South Africa. Geology Nerd
libutron: Tourmaline | ?Orbital Joe Tourmaline from Brazil. The core seems to be a Quartz Psudomorph of the Tourmaline. Geology Nerd
libutron: Corundum variety Ruby in Zoiesite | ?usageology Longido, Arusha, Tanzania. Geology Nerd