- Tennantite on Quartz
- Small Cabinet, 7.7 x 7.2 x 3.7 cm
- Concepcion del Oro, Zacatecas, Mexico
- Ex. Richard Heck
These are still in some circles considered among best of species, for the stereotypic crystal habit and isolation on beautiful contrasting matrix. A matrix of drusy, white quartz is studded with crystals of nearly equant, lustrous, metallic-gray, tennantite to 2 cm across. I particularly like the two large crystals perched high on top of the matrix, which are very dramatic (and quite large for crystals of this old classic find) .