igneous
Pink feldspar-rich rock, possibly pegmatitic feldspar
Likely potassium feldspar (orthoclase or microcline), with quartz and/or mica; exact identification is uncertain from the image.
AI-generated identification · may be incorrectPale salmon-pink and white, with rough, blocky surfaces and some reflective cleavage faces. Feldspar is Mohs 6, typically vitreous to pearly, and has two cleavage directions near 90°; composition and specific gravity cannot be confirmed visually.
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Physical properties
Pale salmon-pink and white, with rough, blocky surfaces and some reflective cleavage faces. Feldspar is Mohs 6, typically vitreous to pearly, and has two cleavage directions near 90°; composition and specific gravity cannot be confirmed visually.
Formation & geological history
Feldspar commonly crystallizes as magma cools, especially in coarse-grained pegmatites; such rocks span a wide range of geological ages. The specimen’s texture alone does not establish its precise origin.
Uses & applications
Feldspar is used in ceramics and glass; attractive pieces may be kept as inexpensive mineral specimens. This rough fragment appears to have limited gem or ornamental value.
Geological facts
Pink color in potassium feldspar often comes from trace impurities rather than a separate pink mineral.
Field identification & locations
Look for salmon-pink color, blocky crystals, and two near-perpendicular cleavage planes; hardness testing and examination of a fresh surface can help distinguish feldspar from calcite or mica. Feldspar occurs worldwide, particularly in granites and pegmatites.
