mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectHardness: 3 on Mohs scale; Color: lemon yellow to honey gold; Luster: vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: perfect rhombohedral; Specific gravity: 2.71
- Hardness
- 3 on Mohs scale
- Color
- lemon yellow to honey gold
- Luster
- vitreous to waxy
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Physical properties
Hardness: 3 on Mohs scale; Color: lemon yellow to honey gold; Luster: vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: perfect rhombohedral; Specific gravity: 2.71
Formation & geological history
Formed in sedimentary environments through chemical precipitation in hot springs, caves, or as marine deposits. It can also be found in metamorphic marble or igneous carbonatites.
Uses & applications
Commonly used for tumbled stones, decorative carvings, metaphysical healing practices, and as a source of calcium in industrial applications like cement.
Geological facts
Yellow calcite is known to be fluorescent under UV light. It is one of the most common minerals on Earth, but the bright yellow variety is highly prized by collectors for its sunny appearance.
Field identification & locations
Can be identified by its softness (it can be scratched by a copper coin) and its effervescent reaction when exposed to weak acids like vinegar. Often found in Mexico, Brazil, and the USA.
