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单词 hydrogarnet
释义

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hydrogarnet
hydrogarnet n.
Brit. /ˌhʌɪdrə(ʊ)ˈɡɑːnᵻt/
,
U.S. /ˌhaɪdroʊˈɡɑrnət/
Mineralogy any mineral whose formula is that of a garnet in which water molecules replace some or all of the silicate groups.
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the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > garnet
garneta1350
granatea1400
green iron ore1804
hydrogarnet1941
1941 E. P. Flint et al. in Jrnl. Res. Nat. Bureau of Standards (U.S.) XXVI. 14 An extension of the study revealed that silica could replace water in both 3CaO.Al2O3.6H2O and 3CaO.Fe2O3.6H2O, and that the end products of these substitutions are grossularite garnet, 3CaO.Al2O3.3SiO2, and andradite garnet, 3CaO.Fe2O3.3SiO2, respectively... The hydrous members of the series may be termed ‘hydrogarnets’ to indicate their relationship to the naturally occurring garnets.
1966 W. A. Deer et al. Introd. Rock-forming Minerals 23 In the hydrogarnets there is replacement of SiO2 by 2H2O, with vacant Si spaces in the structure.
extracted from hydro-comb. form
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