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Much of what was originally introduced to the gemstone market as andesine is not truly andesine and is actually enhanced labradorite, a fellow plagioclase feldspar. Andesine has a faint metallic schiller called labradorescence and exhibits a range of color known as pleochroism. Is red labradorite expensive? Red Labradorite is aRead More →

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Labradorite, a feldspar mineral in the plagioclase series that is often valued as a gemstone and as ornamental material for its red, blue, or green iridescence. The mineral is usually gray or brown to black and need not be iridescent; when used as a gem it is usually cut enRead More →