mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectHardness: 3 on Mohs scale; Color: Yellow to deep orange; Luster: Vitreous to waxy; Crystal Structure: Trigonal/Hexagonal; Cleavage: Perfect rhombohedral; Specific Gravity: 2.71
- Hardness
- 3 on Mohs scale
- Color
- Yellow to deep orange
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 3 on Mohs scale; Color: Yellow to deep orange; Luster: Vitreous to waxy; Crystal Structure: Trigonal/Hexagonal; Cleavage: Perfect rhombohedral; Specific Gravity: 2.71
Formation & geological history
Formed through chemical precipitation in sedimentary environments, hydrothermal veins, or as a constituent of metamorphic marble. It is a common rock-forming mineral found worldwide.
Uses & applications
Used in the manufacturing of cement and lime, as an acid neutralizer in the chemical industry, in soil remediation, and as polished decorative stones or tumbled pocket stones for collectors.
Geological facts
Calcite is famous for its double refraction (birefringence), where light passing through a clear crystal splits into two rays. Yellow calcite specifically is often associated with the solar plexus chakra in metaphysical beliefs.
Field identification & locations
Can be identified in the field by its softness (can be scratched by a copper coin) and its vigorous reaction (effervescence) to dilute hydrochloric acid. It is commonly found in limestone quarries and caves.
