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单词 beidellite
释义

beidelliten.

/bʌɪˈdɛlʌɪt/
Etymology: < Beidell (see definition) + -ite suffix1.
Mineralogy.
A clay mineral from Beidell, Colorado.
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the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > smectites > beidellite
beidellite1925
1925 Larsen & Wherry in Jrnl. Washington Acad. Sci. XV. 465 Beidellite, a new mineral name..we now propose..from the locality of the first occurrence described in detail, Beidell, Colorado..Al2O3.3SiO2.XH2O.
1932 E. S. Dana Text-bk. Mineral. (ed. 4) v. vii. 682 Beidellite, Al2O3.3SiO2.4H2O. Probably orthorhombic..Iron-beidellite is a variety with considerable amount of Fe2O3.
1955 J. C. Brown & A. K. Dey India's Mineral Wealth (ed. 3) xiii. 532 Beidellite, anauxite and others, in which the proportion of water varies and the ratio of the silica to the alumina changes.
1963 D. W. Humphries & E. E. Humphries tr. H. Termier & G. Termier Erosion & Sedimentation vi. 135 More often..the clay formed is beidellite (Al, Mg)4 (Si Al)8 O12(OH)20 which is closely related to montmorillonite.
This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2018).
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