
igneous
Pink-and-gray feldspar-rich rock, likely granite or pegmatite fragment
Granite/pegmatite; chiefly quartz and feldspar, possibly mica
AI-generated identification · may be incorrectSmall, coarse-looking pink, white, and gray grains with a vitreous-to-dull luster. Likely hardness 6–7, with no obvious cleavage visible at this scale; exact identification needs a closer view.
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Physical properties
Small, coarse-looking pink, white, and gray grains with a vitreous-to-dull luster. Likely hardness 6–7, with no obvious cleavage visible at this scale; exact identification needs a closer view.
Formation & geological history
If granite or pegmatite, it crystallized slowly from silica-rich magma underground; such rocks formed in many geological periods and occur in continental crust.
Uses & applications
Granite is widely used as building and dimension stone; pegmatite is valued as a source of feldspar, quartz, mica, and collectible crystals.
Geological facts
Pink coloration commonly comes from potassium feldspar, while gray translucent patches may be quartz.
Field identification & locations
Look for interlocking grains and distinguishable quartz and feldspar; the image is too close and small to confirm the rock type. Granite and pegmatite are widespread, especially in ancient continental terrains.