Oregon sunstone — specimen 0038, photo © NMNHS
Oregon sunstone — specimen 0038
Weight: 0.52 ct; size: 6.14 | 3.99 | 2.85 mm; shape: octagon; colour: colourless; clarity: eye clean; cut: good; treatment: none.
Very clean specimen; good step cut style. Source: Gary Eisenberg, Knoxville, Tennessee.
More information from ‘Classification’
A feldspar with copper inclusions; has a composition of about 70% anorthite and 30% albite; occurs in Oregon, USA.