- Cabinet, 11.2 x 7.4 x 6.9 cm
- Santa Eulalia District, Mun. de Aquiles Serdan, Chihuahua, Mexico
These phantom calcites from Santa Eulalia have not been seen for around 40 years, so this recent find at the locality was especially exciting. They are really unique looking, with dark, coated crystals inside, and sometimes emerging out of, a later generation of translucent crystals with areas of coloration from hematite.