- Calcite, Gypsum
- Cabinet, 12.4 x 8.0 x 4.7 cm
- Santa Eulalia District, Mun. de Aquiles Serdan, Chihuahua, Mexico
A large plate of spiky scalenohedral calcite crystals with a shimmering surface sheen, with water-clear blades of gypsum growing amongst them. The calcites have an unidentified coating that gives them a yellowish color. Ex. Stoudt Collection.