
1) Beautiful stone 2) Cubic mineral 3) Cut mineral 4) Decorative stone 5) Gemstone mineral 6) Gemstone 7) Jewel 8) Jewel mineral 9) Mineral gemstone 10) Mineral 11) Mineral jewel 12) Potassium mineral 13) Polished mineral 14) Polished jewel 15) Precious stone 16) Precious gemstone 17) Prized mineral
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1) Sylvine
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Sylvite is potassium chloride (KCl) in natural mineral form. It forms crystals in the isometric system very similar to normal rock salt, halite (NaCl). The two are, in fact, isomorphous. Sylvite is colorless to white with shades of yellow and red due to inclusions. It has a Mohs hardness of 2.5 and a specific gravity of 1.99. It has a refractive i...
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http://en.wikipedia.org/wiki/Sylvite

• (n.) Native potassium chloride.
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halide mineral, potassium chloride (KCl), the chief source of potassium. It is rarer than halite (sodium chloride) and occurs as soft, ... [1 related articles]
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http://www.britannica.com/eb/a-z/s/198

Sylvite (sylvine) is an industrial mineral, the naturally occurring potassium chloride, and as such the main mineral ore of potassium. Sylvite has a relative hardness of two and is used as a fertilizer. Sylvite is an evaporate mineral found in sedimentary evaporate deposits such as dried-out salt lakes and seas in deserts, and is associated with ha...
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Potassium chloride
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[
n] - a mineral consisting of native potassium chloride
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http://www.webdictionary.co.uk/definition.php?query=sylvite
sylvine noun a mineral consisting of native potassium chloride; an important ore of potassium that is found in sedimentary beds
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Potassium chloride, the principal ore of potassium mined for fertilizer manufacturing.
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(Potassium Chloride) Sylvite, also called sylvine, is a major source of potassium or potash used in fertilizer products. So great is the need for potassium that sylvite deposits are considered very valuable economically. As a mineral specimen sylvite does not get much attention. The crystals can be well formed and are often redd...
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a common mineral, potassium chloride, KCl, colorless to milky-white or red, occurring in crystals, usually cubes, and masses with cubic cleavage, bitter in taste: the most important source of potassium.
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