Labradorite is a feldspar mineral native to Paul's Island near Labrador, Canada, that exhibits a unique iridescent optical effect known as labradorescence, which is "the peculiar reflection of the light from submicroscopical planes orientated in one direction." What this means in layman's terms is that, when the light reflects just right on the specimen, brilliant rainbow color patterns will leap from the surface, resembling the effect of an oil slick on asphalt. This particular specimen of labradorite is polished to perfection, all the better to reveal the effects of labradorescence. The bottom of the mineral is also filed and flattened, allowing you to use it as a unique desk decoration, or a paperweight. Makes a great gift for earth science teachers or rock/mineral enthusiasts!
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