Composition: Manganese carbonate
Nomenclature: Named after the Greek words "rhodo" and "chrosis" which mean "rose" and "colored" because of its color.
Industrial Uses: Gemstones, cavings, ornamental stones.
Additional Notes: A member of the Calcite group of minerals. Also referred to as manganese spar. An attractive, but non-durable, stone of limited usefulness because it can be damaged easily.
Central Africa : Scott 1262d : 600 francs : 1998
United States : Scott 1541 : 10 cents : 13 Jun 1974