mineral

Honey Calcite

Calcite (Calcium Carbonate, CaCO3)

Hardness: 3 on Mohs scale. Color: Honey-yellow to golden brown. Luster: Vitreous to pearly. Crystal structure: Trigonal/Rhombohedral. Cleavage: Perfect rhombohedral in three directions. Specific Gravity: 2.71.

Hardness: 3 on Mohs scale
Color: Honey-yellow to golden brown
Luster: Vitreous to pearly

Identified July 8, 2026More mineral →

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Physical properties

Formation & geological history

Formed through sedimentary processes, often as a precipitate from calcium-rich groundwater in caves or as the primary component of limestone and marble. Honey colored varieties often result from trace iron impurities.

Uses & applications

Used in the manufacture of cement and lime, as an acid neutralizer in the chemical industry, and widely collected as metaphysical crystals and decorative specimens.

Geological facts

Honey calcite is known for its distinct 'double refraction' property, where light splitting through the crystal creates a double image. It is chemically reactive to dilute hydrochloric acid, which will make it fizz.

Field identification & locations

Identify in the field by its rhombohedral cleavage (it breaks into tilted blocks), its relative softness (can be scratched by a copper coin), and the acid fizz test. Commonly found in Mexico, Brazil, and the USA.