Rock Identifier
Blue Calcite (Calcium Carbonate, CaCO3) — mineral
mineral

Blue Calcite

Calcium Carbonate, CaCO3

AI-generated identification · may be incorrect

Mohs hardness of 3, light to sky blue color, vitreous to pearly luster, rhombohedral crystal system, and perfect cleavage in three directions.

Identified More mineral →
Explore Blue Calcite in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Mohs hardness of 3, light to sky blue color, vitreous to pearly luster, rhombohedral crystal system, and perfect cleavage in three directions.

Formation & geological history

Formed in sedimentary, metamorphic, and hydrothermal environments through the precipitation of calcium carbonate from solution.

Uses & applications

Used primarily in decorative items, crystal healing, and as a mineral specimen for collectors.

Geological facts

Blue calcite is known for its calming energy and is often used in meditation to soothe the nervous system.

Field identification & locations

Easily identified by its distinct blue color, softness (easily scratched by a copper coin), and strong effervescence when exposed to dilute hydrochloric acid.