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Oregon sunstone
A feldspar with copper inclusions; has a composition of about 70% anorthite and 30% albite; occurs in Oregon, USA.
See:
Anorthite-albite series
Oregon sunstone — specimen 0447
, photo © NMNHS
Material from ‘Repository’
5 specimens:
0723
— 0.15 ct, USA, Oregon;
0447
— 0.53 ct, USA, Oregon;
0008
— 0.72 ct, USA, Oregon;
0038
— 0.52 ct, USA, Oregon;
0446
— 0.53 ct, USA, Oregon.
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Gemmology — gemstones
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