Definitions for aragoniteəˈræg əˌnaɪt, ˈær ə gə-
Random House Webster's College Dictionary
a•rag•o•niteəˈræg əˌnaɪt, ˈær ə gə-(n.)
a carbonate mineral, CaCO3, chemically identical with calcite but differing in key physical properties.
Origin of aragonite:
1795–1805; after Aragon (the province, where first found) + -ite1
a mineral form of crystalline calcium carbonate; dimorphic with calcite
A saline evaporite consisting of anhydrous calcium carbonate with the chemical formula CaCO; it is dimorphous with calcite.
a mineral identical in composition with calcite or carbonate of lime, but differing from it in its crystalline form and some of its physical characters