Ore kyanite on white background

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  • Ore kyanite on white background, is a typically blue silicate mineral, commonly found in aluminium-rich metamorphic pegmatites and/or sedimentary rock.Small grains of magnetite occur in almost all igneous and metamorphic rocks. Magnetite is black or brownish-black with a metallic luster, has a Mohs hardness of 5–6 and leaves a black streak.At the end of the Middle Ages, lapis lazuli began to be exported to Europe, where it was ground into powder and made into ultramarine, the finest and most expensive of all blue pigments. It was used by some of the most important artists of the Renaissance and Baroque, including Masaccio, Perugino, Titian and Vermeer, and was often reserved for the clothing of the central figures of their paintings, especially the Virgin Mary. Today, mines in northeast Afghanistan and Pakistan are still the major source of lapis lazuli. Important amounts are also produced from mines west of Lake Baikal in Russia, and in the Andes mountains in Chile. Smaller quantities are mined in Italy, Mongolia, the United States, and Canada.
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Keywords for Facebook, Twitter and LinkedIn timeline photos

background beauty blue chakra close collection color crystal crystalline crystals cyanite gem gemmology gemology gemstone geological geology healing jewels kyanite macro material metamorphic mine mineral mineralogy natural nature object ore pebble piece precious rock sample shiny shooting small specimen stone stones structure surface texture textured white

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