Gypsum (Var: Selenite)
Thumbnail, 6.8 x 5.8 x 3.5 cm
Darwin mine, Darwin District, Inyo Co., California, USA

A showy specimen of lustrous, water-clear well-terminated selenite crystals to 2.5 cm attractively perched on the top of mostly massive pyrite from the famous Darwin Mine of California. One well-formed and striated pyrite cube stands out. The long selenite crystal has hole through the crystal at the termination! This is older material, seldom available, as the last portion of the Darwin Mine closed in 1976. See the Mineralogical Record article in the January-February 1984 issue. 6.8 x 5.8 x 3.5 cm