This thin, dendritic, "fan" of 100% crystallized copper has been colored red by the minute inclusion of cuprite. There are also several, lustrous, red, SHARP crystals of cuprite, to 1 mm across, scattered on the copper specimen....all those bumps you can see in the large version of the top-right image. Unusual! If not from Charlie himself, and with those sharp little primary cuprites perched on top to mark this as not being from Michigan, I would frankly not believe it. A significant piece because few Tsumeb collections are graced by an aesthetic copper: despite its mineralogical wealth of copper based minerals, Tsumeb seems to have rarely produced good primary copper in crystalline form