mineral
Rhodonite
Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3
AI-generated identification · may be incorrectHardness: 5.5-6.5; Color: Pink, rose-red, or cherry-red with black manganese oxide veins; Luster: Vitreous to pearly; Crystal System: Triclinic; Cleavage: Perfect in two directions; Specific Gravity: 3.5-3.7
- Hardness
- 5
- Luster
- Vitreous to pearly
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Physical properties
Hardness: 5.5-6.5; Color: Pink, rose-red, or cherry-red with black manganese oxide veins; Luster: Vitreous to pearly; Crystal System: Triclinic; Cleavage: Perfect in two directions; Specific Gravity: 3.5-3.7
Formation & geological history
Formed through contact metamorphism and hydrothermal processes, typically found in manganese-rich metamorphic rocks or hydrothermal veins. Age varies by location but occurs throughout geological history.
Uses & applications
Used primarily as an ornamental stone, for carvings, lapidary work, jewelry (cabochons and beads), and as a minor ore of manganese.
Geological facts
The name is derived from the Greek word 'rhodon', meaning rose. It was once believed in parts of Russia to protect travelers and children. It is the official state gem of Massachusetts.
Field identification & locations
Identify by its distinctive 'rose-pink' color often contrasted by black dendritic (tree-like) patterns of manganese oxide. Found in Russia (Ural Mountains), Australia, Brazil, and the USA.
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