Sunstone-Rare Teal/Red

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

Origin: Spectrum Mine Oregon

Weight: 1.15

Color: Green-Red

Cut: Rectangle (Emerald bar-57) (JJG)

Clarity: VS

Size: 5.0 x 10 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: 4.8cts cut to a 1.15 cts stone or 24% of the original was retained.

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

Fracture with iron oxide coloring - orange color at end of stone - stable