Smithsonite ( penetration twin )

57 x 45 x 37 mm overall
with up to 9 mm Smithsonite crystals

Well formed crystals of silvery clear Smithsonites to 9 mm on matrix are arranged on this very three-dimensional specimen. The sharp rhombohedrons have a bright satiny luster and slightly curved faces, and many crystals are penetration twins. An excellent Tsumeb specimen with no damage.

ex. Bob Griffis collection.