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feldspar Properties Uses Types amp Facts Britannica

Feldspar Feldspar any of a group of aluminosilicate minerals that contain calcium sodium or potassium Feldspars make up more than half of Earth 39 s crust and

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Feldspar Wikipedia

Feldspars are a group of rock forming tectosilicate minerals that make up about 41 of the Earth 39 s continental crust by weight

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University of Minnesota 39 s Mineral Pages Potassium Feldspar

Over half the Earth 39 s crust is composed of a single group of minerals known as the feldspars Feldspars are an important component of many building stones but

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Feldspar minerals make up over 50 of Earth 39 s crust Geology

Feldspar minerals occur in igneous metamorphic and sedimentary rocks throughout The alkali feldspars form a solid solution series between pure albite and Two specimens of labradorite feldspar that have been cut into faceted stones

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Feldspar Distinctions Characteristics amp Identification ThoughtCo

Jan 9 2019 For rockhounds without laboratories it 39 s enough to be able to tell the two main types of feldspar plagioclase PLADGE yo clays feldspar and

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