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Aragonite Reference Libraries

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Blue Coral
2012-04-03 14:51:27

Blue Coral, (Heliopora coerulea), is a species of coral in the Helioporidae family. It is commonly found in shallow coral reefs and is found extensively throughout the Indo-Pacific including the Ryukyu Islands in southwest Japan, the Coral Sea in northeast Australia, and American Samoa. The largest known blue coral colony in the world is off Ishigaki Island of the Yaeyama Islands in southwest...

Aragonite
2005-05-26 12:17:18

Aragonite is a polymorph of the mineral calcite, both having the chemical composition CaCO3. Its structure differs from calcite and leads to a different crystal shape, an orthorhombic system with acicular crystals. By repeated twinning pseudo-hexagonal forms result. It may be columnar or fibrous, occasionally in branching stalactitic forms called flos-ferri (flowers of iron) from their...

Word of the Day
cruet
  • A vial or small glass bottle, especially one for holding vinegar, oil, etc.; a caster for liquids.
This word is Middle English in origin, and ultimately comes from the Old French, diminutive of 'crue,' flask.
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