• Pink Feldspar •
(Georgia)

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• Pink Feldspar •
(Georgia)

Feldspar - Labradorite - Albite - Amazonite
Microcline - Orthoclase - Moonstone - Feldspar group

Feldspar is the mineral name given to a group of minerals distinguished by the presence of aluminum and silica. Members of this group include Labradorite, Moonstone, Albite, Amazonite, Orthoclase, Microcline, and Plagioclase feldspars. In addition to feldspar forming to a number of different crystal structures, many of which finds their way in to rock and mineral collections, feldspar is industrially important used in a number of areas. Glass and ceramic industries, pottery and enamelware, sops, abrasives, bond for abrasive wheels, cements and concretes, insulating compositions, fertilizer, poultry grit, tarred roofing materials, and as a sizing (or filler) in textiles and paper.

Feldspar is relatively hard at 6 on the Mohs harness scale. Feldspars are generally light-colored, including white, pink, tan, green or gray. The color of feldspar varies due to impurities within the crystal structure. All feldspars contain silica and aluminum.

The generic term "feldspar" comes from the Germanic term "feldt spat", meaning "mineral with prominent cleavage from the field". Ray collected this material in Rockdale, County, Georgia. He thinks this material is from a local granite quarry. Granite often has feldspars incorporated within it.

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