Black Anorthoclase Crystal Clustrer
Black Anorthoclase Crystal Clustrer from Tjolling, Norway
Collection American Museum of Natural History
Description Crystal cluster of black Anorthoclase, a rare member of the feldspar group. Specimen on exhibit in the tectosilicates themed display case at the American Museum of Natural History in New York.
Locality Tjolling, Norway
Specimen Grade B
Photograph Hershel Friedman Photo

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