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Comments: Brownish-black senaite cleavage.
Location: Dattas, near Diamantina, Minas Gerais, Brazil.
Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
Comments: Black crystal of senaite.
Location: Presidente Kibitschek, Minas Gerias, Brazil.
Scale: Crystal size 2 mm.
© Dave Barthelmy