sorosilicaten.
/sɒrəʊˈsɪlɪkət/ Mineralogy.
Any of the group of silicates characterized by isolated pairs of SiO4 tetrahedra that share an oxygen atom at a common apex.
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sorosilicate1947
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.
1960 Amer. Mineralogist 45 1 Perrierite is a sorosilicate, with a high number of O-atoms not bonded to silicon.
1972 R. W. Fairbridge Encycl. Geochem. & Environmental Sci. 101/1 In the sorosilicates (two isolated tetrahedra which share one oxygen atom) calcium is present mainly in the epidote group.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).
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