Greenockite on Quartz (rare locale)

Item Description

Greenockite (cadmium sulfide) specimens are very rare from this Bolivian tin mine, perhaps the only active tin mine in the world where one of the main ores is a tin sulfide! The quartz crystal-covered matrix hosts about a half-dozen, glassy orange-brown, pyramidal greenockite crystals to 2 mm and a partial coating of earthy, orange greenockite. It is very uncommon to see both greenockite crystals and crusts from this locale.