Black Manganese In Rhodonite & Garnet 925 solid SS

Rhodonite is a pink manganese silicate mineral that often contains significant amounts of iron, magnesium, and calcium. It is often associated with black manganese oxides which may occur as dendrites, fracture-fillings, or matrix within the specimen. Rhodonite is an uncommon mineral and is found in a few small deposits across the world, it is usually found in metamorphic rocks that have been altered by hydrothermal and metasomatic processes, taking millions of years to form.