- Fluorite on Galena With Bournonite and Pyrite
- Cabinet, 9.4 x 7.4 x 4.5 cm
- Naica, Chihuahua, Mexico
- Ex. Richard Heck
Bournonite is very rare at this locality. This is a solid, bright metallic mass of galena crystals to 2 cm across, with varying luster from satiny to splendent. Scattered on the galena are lustrous and translucent, light pastel-purple fluorite crystals, to 1.8 cm across. Small bournonite crystals, exhibiting the classic cog-wheel pattern so desirable, are present on some galena crystals, and reach 1 cm across. Additionally, there are pods of splendent, brassy yellow, drusy, pyrite. A neat combo specimen, from this old classic locale!