igneous
Weathered feldspar-rich rock, possibly granite or pegmatite
Likely feldspar-dominant granitic rock; exact identification requires a closer view of its minerals
AI-generated identification · may be incorrectCoarse, blocky specimen with salmon-pink and tan tones and apparent cleavage surfaces, consistent with feldspar. Feldspar hardness is about 6 Mohs, vitreous to dull luster, and two near-right-angle cleavage directions; the specimen’s full mineral composition cannot be confirmed from the image.
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Physical properties
Coarse, blocky specimen with salmon-pink and tan tones and apparent cleavage surfaces, consistent with feldspar. Feldspar hardness is about 6 Mohs, vitreous to dull luster, and two near-right-angle cleavage directions; the specimen’s full mineral composition cannot be confirmed from the image.
Formation & geological history
If granitic, formed as silica-rich magma cooled slowly underground, allowing crystals to grow; such rocks commonly formed during Precambrian and later geologic periods.
Uses & applications
Granite is used as dimension stone, aggregate, and decorative material; feldspar is an important ingredient in glass and ceramics. This rough piece is mainly suitable for collecting or identification.
Geological facts
Pink coloration often comes from potassium feldspar, while plagioclase and quartz may also occur in granitic rocks.
Field identification & locations
Look for interlocking visible crystals and distinguish feldspar’s flat cleavage faces from glassy, irregular quartz. Granitic rocks are widespread in continental crust and occur in many regions worldwide.
