Feldspar -Andalusite

Rectangle (Xtacy-53)(JJG);1.8 Cts; 5..57 x 8.6 mm

$25.00

Type: Andalusite

Origin: Unknown

Weight: 1.8

Color: root beer brown

Cut: Rectangle (Xtacy-53)(JJG)

Clarity: VS

Size: 5..57 x 8.6 mm

Treatments: No Known Treatment

Genealogy: broker to FOco Gems FoCo gems cut. Mine to Broker no information

Hardness: 6.5

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

Comments: Original stone rough: 8.1 cts cut to a 1.8 cts stone or 22% of the original was retained.

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