mineral

Orange feldspar pebble (likely potassium feldspar)

Likely orthoclase or microcline, KAlSi₃O₈

AI-generated identification · may be incorrect

The small salmon-orange piece appears opaque and naturally fractured or worn, with a dull to vitreous luster. Feldspar has Mohs hardness 6, two cleavage directions near 90°, and a monoclinic or triclinic crystal structure; the photo alone cannot confirm the exact mineral.

Identified October 7, 2026More mineral →

Explore Orange feldspar pebble (likely potassium feldspar) in the encyclopedia →

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Physical properties

Formation & geological history

Feldspar crystallizes as magma cools in igneous rocks such as granite and pegmatite, and also occurs in metamorphic rocks; its geological age depends on its source.

Uses & applications

Feldspar is widely used in glass and ceramic manufacture; attractive crystals and pebbles are collected, though this fragment appears to have little gem value.

Geological facts

Feldspar is the most abundant mineral group in Earth’s crust. Orange or pink color commonly comes from trace impurities or mineral inclusions.

Field identification & locations

Look for salmon-pink color, blocky shape, and two near-right-angle cleavage faces; compare with quartz, which lacks cleavage and breaks with curved surfaces. Feldspar is common in granites worldwide.