Rock 366 : Day 350 : Schwartzembergite
Day 350 : Schwartzembergite, an unusual secondary lead mineral from weathering in arid regions, containing trivalent iodine. From Sierra Gorda, Antofagasta, Chile. Cotton collection, Keele.
Day 350 : Schwartzembergite, an unusual secondary lead mineral from weathering in arid regions, containing trivalent iodine. From Sierra Gorda, Antofagasta, Chile. Cotton collection, Keele.
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