Willemite replacing Azurite (ex Brian Kosnar Collection)

Item Description

How often does one see this replacement in the mineral world ? This piece hosts gemmy blue-green to white crystals of Willemite forming hollow casts (sometimes called epimorphs) after preexisting Azurite crystals on gossan matrix. A very cool mineral specimen to be sure, and where else but Tsumeb could one find a piece like this ?! Certainly rare, and would make a great addition to any Tsumeb collection. Beautiful and certainly rare in the mineral world. A classic Tsumeb pseudomorph specimen! Valued at $1250.