aragonite
Noun: A mineral form of crystalline calcium carbonate (CaCO₃). It is dimorphic with calcite, meaning it shares the same chemical composition but has a different crystal structure.
The word "arragonite" is used specifically in geology, mineralogy, and related scientific fields to identify and describe this particular mineral form. * Aragonite is often found in the shells of many marine organisms. * The cave formations included both calcite and aragonite crystals. * This sample was identified as arragonite based on its orthorhombic crystal structure.
- Polymorphism: Aragonite is a classic example of a polymorph, specifically a dimorph, of calcium carbonate. Its stability field is at higher pressures than calcite.
- Biomineralization: Aragonite is a key biomineral, deposited by organisms like corals, mollusks, and some algae to form skeletons and shells.
- Aragonitic (adjective): Describing something composed of or containing aragonite.
- The aragonitic skeleton of the coral was delicate.
- Calcium carbonate (specifying the aragonite polymorph)
- (No direct common synonym; it is a specific scientific term. "Mineral" is a hypernym.)
The word "arragonite" has only one primary meaning as a specific mineral. It does not have other common definitions, idiomatic uses, or phrasal verbs.
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a mineral form of crystalline calcium carbonate; dimorphic with calcite
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