mineral
Pink feldspar crystal
Likely potassium feldspar (orthoclase or microcline), KAlSi₃O₈
AI-generated identification · may be incorrectOpaque salmon-pink, blocky crystal with a dull to vitreous luster and apparent cleavage; feldspar hardness is about 6 on the Mohs scale. The image does not show enough detail to distinguish orthoclase from microcline confidently.
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Physical properties
Opaque salmon-pink, blocky crystal with a dull to vitreous luster and apparent cleavage; feldspar hardness is about 6 on the Mohs scale. The image does not show enough detail to distinguish orthoclase from microcline confidently.
Formation & geological history
Potassium feldspar crystallizes from silica-rich magma, commonly in granite and pegmatite; these minerals formed throughout Earth’s history.
Uses & applications
Feldspar is used in glass and ceramic manufacture; attractive crystals are collected and occasionally used as ornamental stone.
Geological facts
Pink color commonly comes from trace iron or other impurities. Feldspar is one of the most abundant mineral groups in Earth’s crust.
Field identification & locations
A blocky habit and two cleavage directions meeting near 90° help distinguish feldspar from quartz, which lacks cleavage. Common in granites and pegmatites worldwide.
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