mineral
Pink feldspar (likely orthoclase)
Orthoclase, KAlSi₃O₈
AI-generated identification · may be incorrectSalmon-pink to peach, vitreous to pearly luster, Mohs hardness 6, monoclinic crystals with two good cleavage directions near 90°. The small, rough fragment is not sufficient for definitive identification.
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Physical properties
Salmon-pink to peach, vitreous to pearly luster, Mohs hardness 6, monoclinic crystals with two good cleavage directions near 90°. The small, rough fragment is not sufficient for definitive identification.
Formation & geological history
Forms during slow cooling of potassium-rich magma, commonly in granites and pegmatites; feldspar is abundant in rocks spanning much of Earth’s geological history.
Uses & applications
Feldspar is used in glass and ceramic manufacture; attractive crystals are collected, and some feldspar varieties are cut as gemstones.
Geological facts
Pink color commonly results from trace impurities in potassium feldspar; feldspar is the most abundant mineral group in Earth’s crust.
Field identification & locations
Look for a blocky shape, two near-right-angle cleavage planes, and hardness around 6; common in granites and pegmatites worldwide. Color alone cannot confirm the identification.
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Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous