mineral
Feldspar
Trikalium alumosilicat / Plagioclase series
AI-generated identification · may be incorrectHardness of 6 on the Mohs scale, typically white, pink, or gray in color with a vitreous to pearly luster. It exhibits good cleavage in two directions at nearly right angles.
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Physical properties
Hardness of 6 on the Mohs scale, typically white, pink, or gray in color with a vitreous to pearly luster. It exhibits good cleavage in two directions at nearly right angles.
Formation & geological history
Forms primarily in igneous rocks like granite and pegmatites through the cooling of magma, as well as in metamorphic and sedimentary environments.
Uses & applications
Widely used in the manufacture of ceramics, glass, porcelain, and as a flux in metallurgy.
Geological facts
Feldspar is the most abundant mineral group in the Earth's crust, making up about 60% of terrestrial rocks.
Field identification & locations
Easily identified by its rectangular crystal habit, 90-degree cleavage angles, and Mohs hardness of 6. Found globally in granitic terrains.
