Description
These selenite crystal twins are from the Naica Mine in Naica, Mun. de Saucillo, Chihuahua, Mexico. It is mined for its deposits of silver, lead and zinc minerals. This mine also contains 87 different mineral species. The 50 foot selenite crystals in its “cave of swords” is worth mentioning. It is also famous for the twinned selenite crystal formations found there. Selenite is a sulfate that contains the elements Ca and S. It is often called gypsum. This specimen is transparent with complex prism faces. It has a luster that varies from glassy, silken and chatoyant depending on how it is lighted and viewed. This piece measures 3 1/4, length of larger crystal and 2 1/4 length of the shorter crystal x 1 inches with a span of 3 inches.
