Orange Calcite
Calcite · Mineral Specimen and Decorative Stone
Crystal System
Trigonal, with a scapolith-like or scalenohedral habit showing distinctive radiating crystal clusters
Mineral Group
Carbonates
Chemical Formula
CaCO3
Formation Process
Hydrothermal and sedimentary processes, commonly precipitating from calcium-rich mineral waters in caves, hot springs, or fracture fillings
About This Crystal
A large, vibrant orange calcite mineral cluster featuring numerous translucent to transparent, elongated scalenohedral or prismatic crystals. The specimen displays a bright honey-to-mandarin orange hue with distinctive starburst and radiating crystal aggregates on the surface.
Physical Characteristics
Vibrant orange body color with a white streak, perfect rhombohedral cleavage in three directions, conchoidal to uneven fracture, specific gravity of approximately 2.71, brittle tenacity, and often exhibits strong pink or orange fluorescence under longwave UV light
Optical Properties
Uniaxial negative with strong birefringence and high double refraction, yielding a distinct doubled image when viewed through transparent cleavage pieces
Hardness & Durability
Origin Region
Mexico, Madagascar, and the USA
Hardness & Durability
Mohs hardness of 3, making it relatively soft and easily scratched by a copper coin; low toughness with pronounced cleavage, rendering it unsuitable for most daily-wear jewelry
Care & Maintenance
Clean gently with a soft cloth and warm soapy water; avoid prolonged exposure to direct sunlight to prevent fading; do not use harsh acids or ultrasonic cleaners due to acid sensitivity and softness
Rarity & Value
Common and widely available globally, with value determined by the intensity of color, crystal size, undamaged cluster structure, and aesthetic presentation
Special Characteristics
Exhibits strong double refraction and frequently displays bright fluorescence under ultraviolet light, alongside striking radiating crystal sunburst formations
Lore & History
Popularly associated in modern crystal healing with the sacral chakra, believed by practitioners to enhance vitality, creativity, and emotional balance, though these are traditional metaphysical beliefs rather than scientific claims