Tsumeb is definitely the world's most famous Copper mine, and one of the most classic localities in the world. Yellow Mimetites from Tsumeb are some of the most highly coveted specimens for collectors. This particular specimen features several bright canary yellow, lustrous, prismatic of crystallized Mimetite with small spherical, mint-green color aggregates of Malachite on gossan matrix. A fine old classic from Tsumeb. Ex. Brian Kosnar Collection.