mineral
Tumbled feldspar-rich rock, likely pink-orange microcline or granite fragment
K-feldspar (microcline/orthoclase), approximately KAlSi₃O₈; exact identification requires testing
AI-generated identification · may be incorrectPale salmon-orange, unevenly translucent to opaque, with a dull-to-vitreous luster and blocky/irregular fracture; feldspar hardness is about 6–6.5 Mohs, with no obvious cleavage visible in this rounded specimen.
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Physical properties
Pale salmon-orange, unevenly translucent to opaque, with a dull-to-vitreous luster and blocky/irregular fracture; feldspar hardness is about 6–6.5 Mohs, with no obvious cleavage visible in this rounded specimen.
Formation & geological history
Likely crystallized from silica-rich magma in a granitic or pegmatitic setting, generally Precambrian to Phanerozoic in age, then weathered and naturally or artificially rounded.
Uses & applications
Used in glass and ceramic manufacture, construction aggregates, and occasionally as a low-value ornamental or lapidary material.
Geological facts
The pink color commonly comes from iron-bearing impurities; white patches may be albite, quartz, or weathering products. A precise identification cannot be confirmed from the photograph alone.
Field identification & locations
Common in granites and pegmatites worldwide, including regions of North America, Europe, and Madagascar. Check for feldspar cleavage, a white streak, hardness greater than glass, and lack of fizzing with dilute acid.
