Gemmology
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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.


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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