igneous
Tumbled pink-and-white feldspar-rich stone
Likely perthitic alkali feldspar (microcline/orthoclase), possibly from granite or pegmatite
AI-generated identification · may be incorrectHardness about 6–6.5 Mohs; salmon-pink, cream, and gray coloration; vitreous to waxy luster; opaque, granular crystalline texture with uneven fracture and poor cleavage visible after tumbling. Exact identification is uncertain from the photograph alone.
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Physical properties
Hardness about 6–6.5 Mohs; salmon-pink, cream, and gray coloration; vitreous to waxy luster; opaque, granular crystalline texture with uneven fracture and poor cleavage visible after tumbling. Exact identification is uncertain from the photograph alone.
Formation & geological history
Likely crystallized slowly in a granitic pluton or pegmatite during cooling of silica-rich magma, commonly Precambrian to younger depending on source. Natural weathering and abrasion—or deliberate tumbling—rounded the specimen.
Uses & applications
Used as a decorative and lapidary stone, aggregate, and a major ingredient in ceramics and glass; generally not gem-grade. Attractive polished pieces are collected as feldspar or granite specimens.
Geological facts
The salmon color commonly results from iron-bearing feldspar. White areas may include quartz or plagioclase, while dark specks could be biotite or amphibole.
Field identification & locations
Look for pink blocky grains, glassy surfaces, and two cleavage directions near 90°; a steel file should barely scratch it, while quartz will scratch it. Common in granitic terrains worldwide, including Maine, North Carolina, Scandinavia, and India.
