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Oregon sunstone
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Oregon sunstone — specimen 0723, photo © NMNHS
Oregon sunstone
—
specimen 0723
Origin
North America
USA, Oregon
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
More information from ‘Classification’
Oregon sunstone
A feldspar with copper inclusions; has a composition of about 70% anorthite and 30% albite; occurs in Oregon, USA.
Gemmology — gemstones
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