Sunstone-Orange-Red

Type: Sunstone (Plagioclase/Orthoclase)(high Cu valance state cu +1 verses +2)

Origin: Spectrum Mine Oregon

Weight: 0.4

Color: Orange-red

Cut: Square (MineCut-57) (JJG)

Clarity: VVS

Size: 5.1 mm

Treatments: No Known Treatment

Genealogy: FOco Gems mined $ cut.

Hardness: 6.5

Source: Spectrum Mine, Oregon

Comments: Classic material from the basalts of the high plains of Oregon.

Original stone rough: 1.5 cts cut to a 0.40 cts stone or 28 % of the original was retained.

(CaNa)(SiAl)4O8 with calcium (Ca) ranging from 70–50% and sodium (Na) from 30– 50%.