mineral
Pink feldspar (likely orthoclase)
Orthoclase, KAlSi₃O₈
AI-generated identification · may be incorrectPink to reddish, opaque, with a vitreous to pearly luster and blocky cleavage; Mohs hardness 6. The small, rough specimen appears consistent with feldspar, though the image alone cannot confirm the exact species.
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Physical properties
Pink to reddish, opaque, with a vitreous to pearly luster and blocky cleavage; Mohs hardness 6. The small, rough specimen appears consistent with feldspar, though the image alone cannot confirm the exact species.
Formation & geological history
Feldspar crystallizes in cooling magma and is common in granites and pegmatites; it formed throughout Earth’s geological history.
Uses & applications
Feldspar is used in ceramics and glass; attractive crystals may be kept in mineral collections or occasionally used as ornamental material.
Geological facts
Orthoclase is a potassium-rich feldspar and a major constituent of many granites.
Field identification & locations
Look for pink color, hardness near 6, and two cleavage directions meeting close to 90 degrees. Common worldwide in granitic rocks and pegmatites.
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Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
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Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous