"Fishtail" Selenite / Gypsum Specimen - Sierra Mojada, Mexico variscite this mineral contains heavy traces

this mineral contains heavy traces of Iron and is sourced primarily from Brazil's Minas Gerais state

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it is a stunning addition to any collection

This variety of gypsum

"Fishtail" Selenite / Gypsum Specimen - Sierra Mojada, Mexico variscite this mineral contains heavy tracesSelenite, a type of gypsum, is a hydrous calcium sulfate (CaSO42H2O) that forms monoclinic crystals with prismatic or bladed shapes and distinct rhombic appearance. It can also be found as arrowhead shaped twins with beveled edges. While pure selenite is colorless or white, impurities can result in shades of pale gray, yellow, red, and brown. With a hardness of 1. 5 2. 0, selenite is transparent to translucent and has a vitreous to pearly luster. It