Colour: Grey-black, steel-gray, ...
Hardness: 3 - 4½
Streak: Reddish grey, black, red-brown
Locality: Zacatecas, Mexico
A beautiful Zacatecas "hedgehog" of calcite crystals with crystals of tennantite in a ring around the base. Not just a good tennantite specimen, but overall a stunning Mexican specimen all around! 9.3 x 7.4 x 6.6 cm
Copyright © Rob Lavinsky