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GeoWord of the Day

The GeoWord of the Day is a free service of the American Geosciences Institute. All of the terms and definitions are from the Glossary of Geology, 5th Edition Revised.

Today's GeoWord

sorosilicate (so-ro-sil'-i-cate)  A class or structural type of silicate characterized by the linkage of two SiO4 tetrahedra by the sharing of one oxygen, with a Si:O ratio of 2:7. An example of a sorosilicate is hemimorphite, Zn4Si2O7(OH)2•H2O. Cf: nesosilicate; cyclosilicate; inosilicate; phyllosilicate; tectosilicate. Syn: double island silicate.

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