Picropharmacolite
Salsigne mine, Salsigne, Carcassonne, Aude, Occitanie, France
5.5 x 3.7 x 2.4 cm. An extremely rich example of clustered spherical aggregates of picropharmacolite, a rare rare hydrated calcium arsenate. This is a striking, sculptural and solid crust of discrete, pearly, botryoids of this rare species. Surprisingly, it is very attractive. Old material from this closed open pit gold mine. Surprisingly, it is ...
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