mineral
K-Feldspar (Potassium Feldspar)
KAlSi3O8
AI-generated identification · may be incorrectHardness of 6 on the Mohs scale, typically salmon pink to reddish-brown in color, with a vitreous to pearly luster and monoclinic or triclinic crystal structure.
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Physical properties
Hardness of 6 on the Mohs scale, typically salmon pink to reddish-brown in color, with a vitreous to pearly luster and monoclinic or triclinic crystal structure.
Formation & geological history
Forms primarily through the slow cooling of felsic magmas in igneous environments like granites and pegmatites.
Uses & applications
Widely used in the manufacturing of ceramics, glass, and as a gemstone or decorative mineral specimen.
Geological facts
Feldspars are the most abundant group of minerals in the Earth's crust, comprising about 60% of terrestrial rocks.
Field identification & locations
Identified by its distinctive pink color, rectangular crystal shape, and two directions of good cleavage meeting near 90 degrees.
