
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
AI-generated identification · may be incorrectHardness: 5.5-6.5 on Mohs scale; Color: Pink to rosy red with black dendritic inclusions of manganese oxide; Luster: Vitreous to pearly; Crystal Structure: 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 on Mohs scale; Color: Pink to rosy red with black dendritic inclusions of manganese oxide; Luster: Vitreous to pearly; Crystal Structure: Triclinic; Cleavage: Perfect in two directions; Specific Gravity: 3.5-3.7
Formation & geological history
Commonly forms in metamorphic rocks associated with manganese ore, often through hydrothermal alteration or contact metamorphism of manganese-rich sediments.
Uses & applications
Primarily used as a gemstone for jewelry, cabochons, and beads, though it is also prized by collectors of ornamental stones and used for small carvings and decorative objects.
Geological facts
The name comes from the Greek word 'rhodon', meaning rose. It was once used in Russia to make beautiful vases and tabletops for the imperial family. It is also the state gemstone of Massachusetts.
Field identification & locations
Identify in the field by its distinct rose-pink color coupled with black manganese oxide veins or spots. It is commonly found in places like Russia (Ural Mountains), Australia, Sweden, Brazil, and the USA (New Jersey and Massachusetts).
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