mineral

Peach-colored feldspar (likely potassium feldspar)

Orthoclase or microcline, KAlSi₃O₈

AI-generated identification · may be incorrect

Hardness about 6 Mohs; pale peach to cream, translucent to opaque, vitreous-to-pearly luster, monoclinic or triclinic crystals, with two near-90° cleavage directions. The rough, uneven fragment limits confident identification from appearance alone.

Identified September 26, 2026More mineral →

Explore Peach-colored feldspar (likely potassium feldspar) in the encyclopedia →

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Physical properties

Formation & geological history

Forms during slow cooling of silica-rich magma in granites and pegmatites; also occurs in metamorphic rocks. Its age depends on the host deposit and may range from millions to billions of years.

Uses & applications

Feldspar is widely used in glass and ceramic manufacture; attractive material is sometimes cut or polished for decorative objects and jewelry.

Geological facts

Pink and peach colors commonly result from trace impurities. Feldspar is one of Earth’s most abundant mineral groups.

Field identification & locations

Look for its blocky shape, two nearly perpendicular cleavage faces, and hardness that scratches glass; it is common in granites and pegmatites worldwide. A photo alone cannot distinguish feldspar reliably from other pale minerals.