mineral

Tumbled pink feldspar pebble

Potassium feldspar, commonly microcline or orthoclase (KAlSi₃O₈)

AI-generated identification · may be incorrect

Salmon-pink, rounded and matte-to-waxy from abrasion; feldspar hardness is Mohs 6, with a vitreous luster and two cleavages near 90°. The image is insufficient to confirm a specific feldspar species or crystal structure.

Identified September 13, 2026More mineral →

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Physical properties

Formation & geological history

Likely a naturally weathered or human-tumbled fragment of pink granite or potassium-feldspar-rich rock, formed by crystallization in intrusive igneous magma, generally in Precambrian to Phanerozoic plutons.

Uses & applications

Used mainly as a decorative or landscaping stone, aggregate, and ceramic/glass raw material; attractive polished pieces are inexpensive collectibles.

Geological facts

Pink color commonly comes from trace iron in potassium feldspar. It may also be quartzite or another salmon-colored silicate, but feldspar is the best visual match.

Field identification & locations

Common in granitic terrains and gravel; identify with hardness testing, lack of acid reaction, and visible cleavage or blocky fracture. A definitive identification requires a fresh surface or laboratory testing.