mineral

Yellow Calcite (Banded)

Calcium Carbonate (CaCO3)

Hardness: 3 on Mohs scale; Color: Honey-yellow to pale orange with white banding; Luster: Vitreous to waxy; Crystal Structure: Trigonal/Hexagonal; Cleavage: Perfect rhombohedral; Specific Gravity: 2.71

Hardness: 3 on Mohs scale
Color: Honey-yellow to pale orange with white banding
Luster: Vitreous to waxy

Identified July 19, 2026More mineral →

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Physical properties

Formation & geological history

Formed through sedimentary processes, often precipitated from calcium-rich groundwater in caves or hot springs (travertine-like formation), or as veins in limestone. Typically found in deposits ranging from tens of millions to hundreds of millions of years old.

Uses & applications

Used primarily as decorative ornaments, metaphysical healing crystals, and mineral specimens. In industrial form, calcite is used for lime, cement, and as a soil neutralizer.

Geological facts

Calcite is one of the most common minerals on Earth, but colored banded varieties like this 'honey' or 'yellow' calcite are popular in the lapidary arts for carving into eggs and spheres because of their softness and attractive glow.

Field identification & locations

Identify by its relative softness (can be scratched by a copper coin or steel knife) and its reaction to weak acid (it will effervesce or fizz when in contact with vinegar). Common locations include Mexico, Utah (USA), and Brazil.