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VERMICULITE
Babylon English English dictionaryDownload this dictionary
vermiculite
n. any of various hydrated silica minerals which expand into worm-like shapes when exposed to heat and are used for heat insulation and as medium for plant growing

Wikipedia English The Free EncyclopediaDownload this dictionary
Vermiculite
Vermiculite is a natural mineral that expands with the application of heat. The expansion process is called exfoliation and it is routinely accomplished in purpose-designed commercial furnaces. Vermiculite is formed by weathering or hydrothermal alteration of biotite or phlogopite. Large commercial vermiculite mines currently exist in Russia, South Africa, China, and Brazil.

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Babylon French English dictionaryDownload this dictionary
vermiculite
nf. vermiculite, any of various hydrated silica minerals which expand into worm-like shapes when exposed to heat and are used for heat insulation and as medium for plant growing

Babylon Italian English dictionaryDownload this dictionary
vermiculite
nf. vermiculite (Geology)

Webster's Revised Unabridged Dictionary (1913)Download this dictionary
Vermiculite
(n.)
A group of minerals having, a micaceous structure. They are hydrous silicates, derived generally from the alteration of some kind of mica. So called because the scales, when heated, open out into wormlike forms.
  

Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
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