mineral

Tumbled pink feldspar (likely orthoclase or microcline)

Potassium feldspar — KAlSi₃O₈

AI-generated identification · may be incorrect

Typically salmon-pink to cream with a vitreous to pearly luster, white streak, and Mohs hardness 6–6.5. It has two cleavage directions and a monoclinic or triclinic crystal structure; the pictured piece is polished/tumbled.

Identified August 30, 2026More mineral →

Explore Tumbled pink feldspar (likely orthoclase or microcline) in the encyclopedia →

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Physical properties

Formation & geological history

Crystallizes from silica-rich igneous melts, especially granite and pegmatite, during cooling over Precambrian to recent geological ages. Weathering and tumbling rounded the specimen.

Uses & applications

Used in ceramics, glass, and abrasives; attractive pink pieces are sold as inexpensive decorative or metaphysical stones. It is generally not a high-value gemstone.

Geological facts

Pink color commonly results from trace iron or other impurities. Small dark inclusions may be biotite, hornblende, or iron-oxide staining.

Field identification & locations

Identify by its salmon-pink color, moderate hardness, cleavage, and association with quartz and mica; it can scratch glass but is scratched by steel only with difficulty. Common in granite, pegmatites, and river gravels worldwide.