Mottramite (unusual form) on Calcite Rob Smith Coll.

Item Description

Mottramite rarely forms attractive specimens from Tsumeb, yet this weird-looking large plate is unusually attractive in its own way. The very strange-looking tubular/botryoidal/worm-like forms are covered with intensely sparkly, grayish-dark green, mottramite over an earlier generation of pistachio-green mottramite on calcite on matrix. Striking and rare mottramite combination material from the Rob Smith Collection. valued $500-600