5683 Goldichite, Halotrichite, Dexter No. 7 Mine, Calf Mesa, San Rafael Mining District, Emery Co., Utah, USA
Yellow masses of crystals of the rare potassium sulphate goldichite on crystalline pinkish halotrichite. Type Locality for goldichite. Width 4.5mm. Stack of 170 images. Ex John Sobolewski. Ex Matt Gibbs.