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5 Category: Feldspar
Stainless Steel Skull Pendant with Black Rhinestones on Chain - Blacken - 23x51mm - NEW1122
Semiahmoo and other Coast Salish Peoples
Due to natural quartz being so often twinned
a one of a kind abstract sculpture
Labradorite Tumbled Stones - Medium 20 - 30 mm - 1 LB - Madagascar Pouches 5 Category: FeldsparLABRADORITE Labradorite ((Ca,Na)(Al,Si)4O8), a feldspar mineral, is an intermediate to calcic member of the plagioclase series. It has an anorthite percentage (%An) of between 50 and 70. The specific gravity ranges from 2. 71 to 2. 74. The streak is white, like most silicates. The refractive index ranges from 1. 555 to 1. 575. Twinning is common. As with all plagioclase members the crystal system is triclinic and three directions of cleavage are
