mineral
Orange Calcite
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectHardness: 3 (Mohs scale); Color: Pale orange to honey-yellow; Luster: Vitreous to waxy; Crystal Structure: Trigonal/Hexagonal; Cleavage: Perfect rhombohedral; Transparency: Translucent to opaque.
- Hardness
- 3 (Mohs scale)
- Color
- Pale orange to honey-yellow
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 3 (Mohs scale); Color: Pale orange to honey-yellow; Luster: Vitreous to waxy; Crystal Structure: Trigonal/Hexagonal; Cleavage: Perfect rhombohedral; Transparency: Translucent to opaque.
Formation & geological history
Forms in various geological settings through precipitation in hot springs, limestone caves, and marine environments. It can also form through metamorphic processes in marble.
Uses & applications
Commonly used for lapidary work (tumbled stones, spheres, carvings), ornamental decor, and as a calcium source in industry. In metaphysical circles, it is used as a 'cleansing' stone.
Geological facts
Calcite is one of the most common minerals on Earth. Orange varieties get their unique hue from iron impurities trapped within the calcium carbonate structure. It exhibits double refraction (birefringence).
Field identification & locations
Identify by its relatively low hardness (can be scratched by a copper coin) and its rapid effervescence (fizzing) when exposed to cold dilute hydrochloric acid. Commonly found in Mexico, Brazil, and the USA.
