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PAS-91
Danalite
Cabinet, 14.0 x 12.4 x 7.1 cm
Rockport, Essex Co., Massachusetts, USA
Ex. Philadelphia Academy of Natural Sciences
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Danalite is a member of the helvite group, rarely crystallizing. This is a large specimen with a massive embedded crystal of beautiful pink-red danalite, showing some fracture faces. What is more, it is from the old TYPE LOCALITY (from which it was described in 1866). A very rare and important old US specimen