Rock Identifier
Calcite Geode (Calcium Carbonate (CaCO3)) — mineral
mineral

Calcite Geode

Calcium Carbonate (CaCO3)

AI-generated identification · may be incorrect

Hardness of 3 on the Mohs scale, white to clear color, vitreous to pearly luster, and rhombohedral crystal cleavage.

Identified More mineral →
Explore Calcite Geode in the encyclopedia →

Identify your own rocks.

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

Physical properties

Hardness of 3 on the Mohs scale, white to clear color, vitreous to pearly luster, and rhombohedral crystal cleavage.

Formation & geological history

Formed through the precipitation of calcium carbonate from mineral-rich aqueous solutions within cavities of host rocks.

Uses & applications

Used in educational collections, ornamental displays, and industrial lime production.

Geological facts

Calcite exhibits strong double refraction, splitting light into two separate rays when viewed through clear crystals.

Field identification & locations

Identified by its distinctive rhombohedral cleavage and immediate effervescence when tested with dilute hydrochloric acid.