Glittering Stones >> Semi Precious Stones >> Labradorite

Semi Precious Stone Labradorite

Labradorite, feldspar mineral that act as an intermediate to calcic member of the plagioclase series. Labradorite occurs as white to gray and blocky to lath shaped grains in mafic igneous rocks like basalt, gabbro and anorthosites. It is one of the attractive gemstone with chemical formula of ((Ca,Na)(Al,Si)4O8).

It is defined as having "%An" (anorthite) between 50 and 70. The specific gravity for the mineral ranges from 2.71 to 2.74 and the refractive index is 1.555 to 1.575. The gemstone varieties of labradorite exhibits high degree of iridescence namely spectrolite, moonstone, sunstone and high-quality samples with good iridescent qualities are desired for jewelry.

Historical Facts of Labradorite Refractive Index 1.555 - 1.575 Chemical Composition (Ca,Na)(Al,Si)4O8 Hardness 6 Density 2.71 - 2.74 Crystal system Triclinic Ocurrence Canada Color Gray, White

Gem Jewelry Labradorite

Labradorite Bracelet

Labradorite Earring

Labradorite Necklace

Labradorite Ring