mineral

Pink feldspar, likely potassium feldspar (rough specimen)

Orthoclase or microcline, KAlSi₃O₈

AI-generated identification · may be incorrect

Pale pink, opaque, vitreous to pearly; Mohs hardness 6, with two cleavages near 90° and a monoclinic or triclinic crystal structure. The photo does not show enough detail to distinguish orthoclase from microcline confidently.

Identified September 26, 2026More mineral →

Explore Pink feldspar, likely potassium feldspar (rough specimen) in the encyclopedia →

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Physical properties

Formation & geological history

Crystallizes as magma cools, commonly in granite and pegmatite; specimens may be hundreds of millions to billions of years old. No locality or age can be determined from the image.

Uses & applications

Used in ceramics and glassmaking; attractive pieces are collected, and feldspar is sometimes cut as a decorative gemstone.

Geological facts

Pink color commonly comes from trace iron or other impurities. Feldspar is the most abundant mineral group in Earth’s crust.

Field identification & locations

Look for pink color, blocky shape, and two prominent cleavage directions meeting nearly at right angles; commonly occurs in granites and pegmatites worldwide. The pictured rough piece could also be another pink mineral, so confirmation would require testing.