Classic pseudomorph of Malachite after Azurite from the famous Tsumeb Mine, Namibia. Well-developed bladed crystals of Azurite mostly form as parallel groups.
This specimen surfaced in the early 1990s after artisanal miners (small-time operators) broke into a cavity in the remote mountain valley of Nuristan Province, Afghanistan. Measures: 5 1/2' x 5 1/8' x
SC-47 Cerussite with Dioptase Tsumeb, Namibia ex. Erik Louw Collection Miniature, 4.5 x 4 x 2 cm John Schneider Photo A gorgeous and, I think, unique combination specimen.
Malachite | #Geology Formula: Cu2(CO3)(OH)2 System:Monoclinic Colour:Bright green, with ... Hardness:3½ - 4
Vivianite is a natural iron phosphate secondary mineral. Its great blue-green crystals are very rare and popular among mineral collectors.
Tourmaline in Lepidolite from Brazil
It's from the famous Pasto Bueno locale in Peru and this specimen is one of the finest Rhodochrosites from there that I've found in years.
gorgeousgeology: “ Rainbow aura quartz ”