THE MATERIAL LIBRARY
Rhodonite
A pink manganese silicate ornamental material.
Colors & patterns
Pink to red, often crossed by black manganese oxide veins.
Typical origins
Sources include Russia, Australia, Sweden and the United States.
Hardness
5.5–6.5 on the Mohs scale.
Choosing & setting this material
The contrast between pink and black makes graphic focal pieces. Fractures and cleavage matter; select sound material and protect it from impact.
Care & cleaning
Clean gently with lukewarm water, a little mild soap and a soft cloth, then dry. Avoid steam, ultrasonic cleaners, harsh chemicals and sudden temperature changes, especially when treatments are unknown.
Origins above describe typical sources of the material, not the origin of an illustrated or stocked stone. Hardness measures scratch resistance, not resistance to breaking. Confirm the identity and treatments of the actual piece.
Further reading: Material reference · GIA: gem treatments