Rock Identifier
Albite (Sodium aluminum silicate (NaAlSi3O8)) — mineral
mineral

Albite

Sodium aluminum silicate (NaAlSi3O8)

AI-generated identification · may be incorrect

Hardness is 6 on the Mohs scale. Color is typically white, colorless, or grey with a vitreous to pearly luster and perfect cleavage.

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Physical properties

Hardness is 6 on the Mohs scale. Color is typically white, colorless, or grey with a vitreous to pearly luster and perfect cleavage.

Formation & geological history

Forms in pegmatites, hydrothermal veins, and as a component of igneous rocks like granite through magmatic crystallization.

Uses & applications

Used in ceramics, glassmaking, and collected as a standard feldspar mineral specimen.

Geological facts

Albite is the sodium-rich endmember of the plagioclase solid solution series and often exhibits polysynthetic twinning striations.

Field identification & locations

Identified by its specific gravity, blocky crystal habit, and distinct cleavage planes; common globally in pegmatites.