San Antonio Mine, Santa Eulalia District, Mun. de Aquiles Serdan, Chihuahua, Mexico
A nest of clear Quartz points to 13 mm long hosts many translucent, white scalenohedral Calcites to 7 mm, most of which are doubly terminated. A green, earthy coating accents part of the specimen, which is in excellent condition.
ex. Carolyn Seitz collection