mineral

Likely feldspar-rich rock (possibly potassium feldspar)

Probably orthoclase or microcline, KAlSi₃O₈; identification from the image is uncertain

AI-generated identification · may be incorrect

Opaque, salmon-tan, with a vitreous to pearly sheen and blocky, uneven fracture. Feldspar hardness is about 6 Mohs, with two cleavages near 90°; crystal structure is monoclinic or triclinic depending on species. The specimen’s bulk specific gravity cannot be determined visually.

Identified October 15, 2026More mineral →

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Physical properties

Formation & geological history

Feldspars crystallize in igneous rocks such as granite and pegmatite, and occur in metamorphic rocks; they formed throughout geological time as magma cooled or rocks recrystallized.

Uses & applications

Feldspar is widely used in glass and ceramic manufacture; attractive crystals are collected and occasionally used as ornamental material.

Geological facts

Feldspar is the most abundant mineral group in Earth’s crust. Its pink, cream, and tan colors commonly result from composition and trace impurities.

Field identification & locations

The blocky shape and pale orange color fit feldspar, but the image does not show cleavage clearly enough to distinguish it confidently from other minerals or rock. Common sources include granites and pegmatites worldwide.