Rhodochrosite
Rhodochrosite · Semi-Precious Gemstone and Collector Mineral
Crystal System
Trigonal, typically occurring in massive, botryoidal, or stalactitic habits with rhombohedral crystals
Mineral Group
Carbonates (Calcite group)
Chemical Formula
MnCO3
Formation Process
Hydrothermal veins associated with silver, lead, and copper sulfides; also in sedimentary manganese deposits at low to moderate temperatures
About This Crystal
An opaque to translucent cabochon showing a vivid pinkish-red to rose-pink color with characteristic swirling white bands and veining, exhibiting a vitreous to pearly luster
Physical Characteristics
Pink to rose-red body color, white streak, perfect rhombohedral cleavage in three directions, uneven to conchoidal fracture, specific gravity around 3.7
Optical Properties
Biaxial negative with high birefringence, uniaxially negative optically, showing strong double refraction and sometimes slight pleochroism in transparent crystals
Hardness & Durability
Origin Region
Notable sources include Argentina (Capillitas), South Africa, Colorado (USA), and Romania; forms in hydrothermal veins and sedimentary environments
Hardness & Durability
Mohs hardness of 3.5 to 4, making it relatively soft and delicate with perfect cleavage, requiring careful wear to avoid scratching or splitting
Care & Maintenance
Clean with mild soapy water and a soft cloth; avoid ultrasonic cleaners, steam, harsh acids, and prolonged exposure to direct sunlight to prevent fading
Rarity & Value
Uncommon to rare depending on quality and banding patterns; valued for rich raspberry-pink colors and distinct architectural banding, commanding moderate to high prices for fine collector pieces
Special Characteristics
Distinctive rhythmic banding caused by alternating layers of manganese carbonate and other minerals like calcite, creating characteristic bulls-eye or lace patterns
Lore & History
Historically known as the Inca Rose due to legends that Inca rulers believed it to be the transformed blood of their ancestors; widely used in modern crystal healing as a stone of emotional healing, compassion, and the heart chakra