Gemmology
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Oregon sunstone — specimen 0723, photo © NMNHS
Oregon sunstone — specimen 0723, photo © NMNHS

Oregon sunstonespecimen 0723

Origin

North America
USA, Oregon
Oregon sunstone — specimen 0723, locality map
Data

Weight: 0.15 ct; size: 3.62 | 3.16 | 2.55 mm; shape: hexagon; colour: light reddish orange; very slightly brownish; clarity: eye clean; cut: excellent; treatment: none.
Notes

Very clean specimen; design ‘Hexamixtum S 41-32’ [pavilion angle changed to 45.00], excellent cut by Tan Pen.

Other specimens
Oregon sunstone — specimen 0447Oregon sunstone — specimen 0008Oregon sunstone — specimen 0038Oregon sunstone — specimen 0446

More information from ‘Classification’


A feldspar with copper inclusions; has a composition of about 70% anorthite and 30% albite; occurs in Oregon, USA.