mineral

Small pale-yellow crystal, possibly calcite

Calcite (CaCO₃), tentative identification from the image

AI-generated identification · may be incorrect

Cream to pale yellow, translucent-to-opaque, with a vitreous to pearly luster and apparent cleavage faces. Calcite has Mohs hardness 3 and trigonal crystal structure; the specimen is too small for reliable visual confirmation.

Identified October 10, 2026More mineral →

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Physical properties

Formation & geological history

If calcite, it likely precipitated from mineral-rich water in a vein, cavity, or sedimentary setting; calcite forms across many geological ages. The photo does not establish its exact source or age.

Uses & applications

Commonly used in cement and lime production, building stone, and as a mineral specimen; this tiny piece has little practical or jewelry value.

Geological facts

Calcite can be identified by its reaction with dilute acid and by rhombohedral cleavage, but those tests cannot be performed from the image.

Field identification & locations

The pale color and blocky appearance are consistent with calcite, though quartz or another light-colored mineral cannot be ruled out. Calcite is widespread in limestone, caves, and hydrothermal veins.