Cassiterite (rare locale) ex Belsky Coll.

Item Description

A very rare and excellent mounded thumbnail cluster of a splendent, twinned, dark brown cassiterite crystals from a most uncommon worldwide locality - Rwanda. The crystals (to 1.2 cm), terminations and twinning planes are extremely sharp. Some of the crystals even have areas of clove-brown gemminess! Very seldom available old-time material. Ex Howard Belsky Collection.