igneous
Tumbled granite or granitic pegmatite
Granite; mainly quartz (SiO₂), feldspar, and minor mica/amphibole
AI-generated identification · may be incorrectPale pink, cream, and gray with a coarse crystalline texture, likely polished by tumbling; vitreous quartz and pearly feldspar luster, Mohs hardness about 6–7, no obvious cleavage on the rounded surface, specific gravity about 2.6–2.7.
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Physical properties
Pale pink, cream, and gray with a coarse crystalline texture, likely polished by tumbling; vitreous quartz and pearly feldspar luster, Mohs hardness about 6–7, no obvious cleavage on the rounded surface, specific gravity about 2.6–2.7.
Formation & geological history
Slow cooling of silica-rich magma produced interlocking quartz and feldspar crystals, with pink coloration commonly from potassium feldspar; most granite formed in Precambrian to younger continental crust, depending on source.
Uses & applications
Used as dimension stone, countertops, monuments, aggregate, and decorative tumbled-stone material; this small specimen has modest collector value.
Geological facts
The visible mottled grains and salmon-pink areas distinguish it from uniform jasper or dyed stone. Dark patches may be biotite mica or amphibole.
Field identification & locations
Identify it by its visible interlocking grains, pink feldspar, translucent gray quartz, and occasional black mica; common worldwide, especially in continental mountain belts and granite quarries.
