1) Beautiful stone 2) Cut mineral 3) Decorative stone 4) Gemstone 5) Gemstone mineral 6) Jewel mineral 7) Jewel 8) Mineral 9) Mineral jewel 10) Mineral gemstone 11) Monoclinic mineral 12) Polished mineral 13) Polished jewel 14) Precious gem 15) Prized mineral 16) Prized stone 17) Precious stone 18) Precious jewel
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https://www.crosswordclues.com/clue/gibbsite
• (n.) A hydrate of alumina.
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http://thinkexist.com/dictionary/meaning/gibbsite/
the mineral aluminum hydroxide [Al(OH)3] an important constituent of bauxite (q.v.) deposits, particularly those in the Western Hemisphere, where it ... [3 related articles]
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http://www.britannica.com/eb/a-z/g/30
Gibbs'ite noun [ Named after George
Gibbs .]
(Min.) A hydrate of alumina.
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http://www.encyclo.co.uk/webster/G/25
Gibbsite is a primarily secondary mineral named after George Gibbs, an American mineralogist. Gibbsite is a hydrate of alumina and gives off a clay-like smell when rubbed or breathed on. It is an important ore of aluminium. Typically it occurs massive, but rarely crystals are found in flattened, tubular, pseudo-hexagonal shapes. It is mostly white,...
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http://www.probertencyclopaedia.com/browse/HG.HTM
Aluminum oxide
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http://www.translationdirectory.com/glossaries/glossary075.htm
[
n] - white crystalline mineral consisting of aluminum hydroxide
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http://www.webdictionary.co.uk/definition.php?query=gibbsite
White crystalline mineral consisting of aluminum hydroxide; a constituent of bauxite and a source of alumina. See also: Aluminium, Aluminium Hydroxide.
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https://www.encyclo.co.uk/local/20687
(Aluminum Hydroxide) Gibbsite is an important ore of aluminum and is one of three minerals that make up the rock Bauxite. Bauxite is often thought of as a mineral but is really a rock composed of aluminum oxide and hydroxide minerals such as gibbsite, boehmite , AlO(OH) and diaspore , HAlO 2 , as well as clays , silt and i...
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https://www.encyclo.co.uk/local/23719
a mineral, hydrated aluminum oxide, AlO&syl;3HO, occurring in whitish or grayish crystals and masses: an important constituent of bauxite ore.
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https://www.infoplease.com/dictionary/gibbsite
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