igneous
Pink feldspar-bearing rock, possibly pink granite or orthoclase
Likely potassium feldspar (orthoclase/microcline), KAlSi₃O₈; exact identification requires testing
AI-generated identification · may be incorrectSalmon-pink, opaque, vitreous to pearly luster, irregular fracture and no obvious cleavage visible. Feldspar hardness is about 6–6.5 Mohs; the rough texture and pale inclusions may indicate a granitic fragment.
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Physical properties
Salmon-pink, opaque, vitreous to pearly luster, irregular fracture and no obvious cleavage visible. Feldspar hardness is about 6–6.5 Mohs; the rough texture and pale inclusions may indicate a granitic fragment.
Formation & geological history
Most likely crystallized slowly from silica-rich magma, commonly during Precambrian to younger continental pluton formation; the specimen may also be a weathered feldspar crystal or pegmatite fragment.
Uses & applications
Granite is used for construction and countertops, while feldspar is used in ceramics and glass. This small rough piece has little commercial value but may interest local collectors.
Geological facts
Pink coloration commonly comes from iron-bearing potassium feldspar. The image alone cannot reliably distinguish feldspar from pink quartz, calcite, rose quartz, or dyed material.
Field identification & locations
Check whether it scratches glass (feldspar generally does), examine cleavage faces, and test streak and hardness; acid testing can help exclude calcite. Common sources include granite outcrops and pegmatites worldwide.
