Aragonite
Aragonite
Aragonite (/əˈræɡəˌnaɪt/) is a carbonate mineral, one of the three most common naturally occurring crystal forms of calcium carbonate, CaCO3 (the other forms being the minerals calcite and vaterite). It is formed by biological and physical processes, including precipitation from marine and freshwater environments.
Etymology
The mineral is named after Aragon, a region in Spain where it was first discovered in the year 1797. The name 'Aragonite' was coined by Abraham Gottlob Werner, a German geologist and mineralogist.
Related Terms
- Calcite: Another form of calcium carbonate, which is more stable than aragonite at normal temperatures and pressures.
- Vaterite: The least common form of calcium carbonate, often found in gallstones and other biological occurrences.
- Carbonate Mineral: A mineral that contains the carbonate ion, CO3^2−.
- Calcium Carbonate: A common substance found in rocks as the minerals calcite and aragonite.
- Marine Environment: The largest aquatic habitat on Earth, covering over 70% of the planet's surface.
- Freshwater Environment: An aquatic environment that has a low salt concentration — usually less than 1%.
External links
- Medical encyclopedia article on Aragonite
- Wikipedia's article - Aragonite
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