rhodochrosite
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Definition
Noun: 1. A mineral: A pink to red mineral that is a carbonate of manganese (MnCO₃). It is a significant source of the element manganese. 2. A gemstone: When found in high quality with a deep, transparent red color, it is cut and polished for use in jewelry.
Usage Examples
- As a mineral:
- The mine is a primary source of rhodochrosite and other manganese ores.
- Geologists identified the banded pink stone as rhodochrosite.
- As a gemstone:
- Her necklace featured a beautiful cabochon of rhodochrosite.
- Collectors seek the rare, gem-quality rhodochrosite from Argentina.
Advanced Usage
- In mineralogy: The term is used specifically to describe the trigonal crystalline form of manganese carbonate. Its characteristic pink color is due to the presence of manganese ions.
- The specimen's perfect rhombohedral cleavage is typical for rhodochrosite.
Variants and Related Words
- Manganese carbonate: The chemical compound (MnCO₃) that constitutes rhodochrosite.
- Inca Rose: A commercial and historical name for banded rhodochrosite, often from Argentina.
Synonyms
- Manganese spar (an older, less common name in mineralogy)
Notes on Meaning
The word "rhodochrosite" consistently refers to the specific mineral manganese carbonate. Its two primary contexts are: 1. Industrial/Geological: Emphasizing its role as an ore of manganese. 2. Lapidary/Collector: Emphasizing its aesthetic value as a decorative stone or gem material.
Noun
- a mineral consisting of manganese carbonate; a source of manganese