El Potosí Mine, Francisco Portillo, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico
Creedite is a complex halide (calcium aluminum sulfate fluor hydroxide) which is typically white or orange in color. Purple color is much rarer and this is a nice example of sharp lilac crystals arranged over a small plate. The crystals are gemmy and lustrous.
Ex Ed Murphy (published)
5.20 x 4.50 x 2.20 cm