Labelled as from Ouray, but probably Brobdignag Mine. Black lusterous material in vugs in broken surface of the specimen.
0519 Guettardite, Brobdignag Mine, Anvil Mountain, Red Mountain District, San Juan Co., Colorado, USA
Labelled as from Ouray, but probably Brobdignag Mine. Black lusterous material in vugs in broken surface of the specimen.
