igneous
K-Feldspar Granite or Quartz
Potassium feldspar / Granite pegmatite
AI-generated identification · may be incorrectHardness of 6 on the Mohs scale, orange to pink color, vitreous to pearly luster, monoclinic or triclinic crystal structure, with good cleavage.
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Physical properties
Hardness of 6 on the Mohs scale, orange to pink color, vitreous to pearly luster, monoclinic or triclinic crystal structure, with good cleavage.
Formation & geological history
Formed from the slow cooling of magma rich in silica and potassium deep within the Earth's crust, typically during the Precambrian era.
Uses & applications
Used in the manufacturing of ceramics, glass, and as a decorative architectural stone or mineral specimen.
Geological facts
Potassium feldspar is one of the most abundant rock-forming minerals in the Earth's continental crust and is often found in pegmatite dikes.
Field identification & locations
Easily identified by its distinct pinkish-orange hue and rectangular cleavage planes; commonly found in mountainous regions and granite quarries worldwide.
