orthoclase (Crossword)

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Definitions of “orthoclase”
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• Orthoclase has the formulae KAlSi3O8 and a relative hardness of
• A common constituent of most granites and other felsic igneous rocks
• It is used in the manufacture of porcelain and for other industrial purposes
• Common alkali feldspar mineral, a potassium aluminosilicate (KAlSi3O8)
• A common mineral in igneous rocks, consisting of potassium aluminum silicate (KAlSi2O8)
• Orthoclase (endmember formula KAlSi3O8) is an important tectosilicate mineral which forms igneous rock
• Common or potash feldspar crystallizing in the monoclinic system and having two cleavages at right angles to each other

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