mineral
Blue Calcite
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectMohs hardness of 3, pale blue to greyish-blue color, vitreous to pearly luster, rhombohedral crystal system, and perfect rhombohedral cleavage.
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, pale blue to greyish-blue color, vitreous to pearly luster, rhombohedral crystal system, and perfect rhombohedral cleavage.
Formation & geological history
Forms primarily in hydrothermal veins and sedimentary environments through the precipitation of calcium-rich solutions.
Uses & applications
Used mainly for decorative carvings, tumbled stones, and holistic crystal healing.
Geological facts
Calcite exhibits strong double refraction, meaning light splits into two rays when passing through transparent varieties.
Field identification & locations
Easily identified by its softness, reacting with dilute hydrochloric acid, and gentle blue coloration. Found globally, especially in Mexico and Madagascar.
