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Feldspar Important Rock Forming Minerals

natural feldspar mineral

Feldspar from the German Word 'Feld'

Feldspar is a general term for one of the most abundant group of minerals on Earth.  Together the different varieties account for more than half the earth’s crust.

These important rock forming minerals occur worldwide and as well as being the major component of most igneous rocks, are also found in sedimentary and metamorphic rocks.  Feldspars have also been found on the moon and in meteorites.

The name feldspar (originally felspar but no longer used) comes from the German word  'feld' meaning 'field'.  This is because during the process of weathering and decomposition, feldspars release nutrients which enrich the soil.

The variation in colour of different stones depends on the impurities present.

Feldspars are widely used in industry mainly for the production of glass, ceramic and porcelain.  Varieties such as labradorite, moonstone, sunstone and amazonite are widely used for decorative purposes.

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