One for the micro-mineral/Tsumeb collector, Keyite is a very rare species from the renowned world location of the Tsumeb Mine, Namibia. The classic blue micro-acicular crystals of Keyite are seen grown on gemmy green crystals of Cuprian Adamite the archetypal association from the mine. The specimen is mounted on mineral tack in a micro-mount box, specimen size is an average of 1.5mm.