Orthoclase, Igneous Mineral, Grenville, Quebec Orthoclase, or orthoclase feldspar is an important tectosilicate mineral which forms igneous rock, typi

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Orthoclase, Igneous Mineral, Grenville, Quebec Orthoclase, or orthoclase feldspar is an important tectosilicate mineral which forms igneous rock, typically as white or pink crystals.

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Keywords: feldspar, grenville, igneous, mineral, moonstone, orthoclase, potassium, quebec, rock, tectosilicate