mineral

Yellow Calcite

Calcite (Calcium Carbonate, CaCO3)

Hardness: 3 on Mohs scale; Color: Pale yellow to golden; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: Perfect rhombohedral; Specific gravity: 2.71

Hardness: 3 on Mohs scale
Color: Pale yellow to golden
Luster: Vitreous to waxy

Identified July 1, 2026More mineral →

Explore Yellow Calcite in the encyclopedia →

Identify your own rocks.

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

App Store Google Play

Physical properties

Hardness: 3 on Mohs scale; Color: Pale yellow to golden; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: Perfect rhombohedral; Specific gravity: 2.71

Formation & geological history

Formed through sedimentary precipitation in marine environments or hydrothermal veins. It is a common constituent of sedimentary rocks like limestone and marble.

Uses & applications

Used as a decorative stone, in jewelry (rarely due to softness), as an acid neutralizer in industry, and as a popular metaphysical or collector\'s specimen.

Geological facts

Calcite is famous for its double refraction property. Yellow calcite specifically is often associated with the solar plexus chakra in crystal healing traditions.

Field identification & locations

Identify by its relative softness (can be scratched by a copper penny) and its reaction to dilute hydrochloric acid (it will fizz/effervesce). This specimen is tumbled and polished.