- Thumbnail, 2.5 x 1.9 x 1.6 cm
- Ipe mine, Governador Valadares, Doce valley, Minas Gerais, Southeast Region, Brazil
A very fine intergrown cluster of jet-black crystals, with the largest being a full 2.5 cm and doubly terminated. The luster ranges from very good along the prism faces to average on the terminations. Ex. Wendell E. Wilson Collection.