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Labradorite is a mineral from the group of calenias.
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The name Labradorite comes from the Labrador Peninsula in the northeast of Canada, where the stone was discovered.
Some feldspar minerals exhibit beautiful optical effects called schillerization. The most famous stones that exhibit the phenomenon of gloss are moonstone and labradorite. The characteristic glow of the moonstone is rainbow blue, while the labradorite glow is green, blue, purple, yellow, orange or all at once.
The play of dark shades of colors, characteristic of Labradorites, is caused by the interference of light reflected from microscopic inclusions of various dark minerals located along the cleavage planes. They are usually tiny plates or needles of ilmenite, hematite and magnetite. Lighter shades, especially blue ones, are caused by the reflection and interference of light rays on the border of tiny twin adhesions of Labrador.
The raw stone may show a slight glow, but can be enhanced by polishing it properly, usually giving it a cabochon cut.
Labradorite is undoubtedly the most widely used semi-precious stone today. It is most often used in rings, earrings, bracelets, pendants, brooches, figs and ornaments.
Labradorite occurs in metamorphic and igneous rocks, often in basalt and gabbro. Crystals of this mineral are rarely found, most often it is found in the form of coarse-grained clusters.
According to the beliefs of the Inuit people, the aurora was once trapped in the rocks off the coast of today's Canada, as long as a brave warrior did not release it with a spear strike. However, a small part of the aurora remained in the rock and it is actually responsible for the phenomenon of the labradorite glow.
Occurrences: Australia, Finland, Canada, Costa Rica, Madagascar, Mexico, Germany, Norway, Poland, Russia, United States. The best quality stones come from the island of Labrador (Canada) and Finland, where it is known as spectrolite.
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