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单词 phyllosilicate
释义

phyllosilicaten.

Brit. /ˌfɪlə(ʊ)ˈsɪlᵻkeɪt/, /ˌfɪlə(ʊ)ˈsɪlᵻkət/, U.S. /ˌfɪloʊˈsɪləkət/
Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: phyllo- comb. form, silicate n.
Etymology: < phyllo- comb. form + silicate n., after German Phyllosilikat (H. Strunz 1938, in Zeitschr. f. die gesamte Naturwiss. 4 185; also Phyllosilicat).
Mineralogy.
Any of the large subclass of silicate minerals characterized by SiO4 tetrahedra linked in sheets of indefinite extent in which the ratio of silicon and aluminium to oxygen is 2:5, important members of which include mica, serpentine, talc, chlorite, and the clay minerals.
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phyllosilicate1947
1947 Mineral. Abstr. 10 52 The different types of SiO4 bonding give at last a systematic classification of silicates into nesosilicates,..sorosilicates,..inosilicates,..phyllosilicates,..and tectosilicates.
1972 Nature 1 Sept. 7/1 Phyllosilicates are the most common material in carbonaceous meteorites.
1991 M. A. Summerfield Global Geomorphol. (BNC) 138 In most cases they [sc. clay minerals] are formed through the recombination of silica, alumina and metal cations released during weathering into layered phyllosilicate-type structures.
1998 J. F. Ranville & R. L. Schmiermund in D. L. Macalady Perspectives in Environmental Chem. ii. 30 Colloidal particles in natural waters may be composed of a wide variety of natural and synthetic materials ranging from macromolecules..to oxides and phyllosilicates.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1947
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