formerly called Pyrosilicate, any member of a group of compounds with structures that have two silicate tetrahedrons (a central silicon atom surrounded by four oxygen atoms at the corners of a tetrahedron) linked together. Because one oxygen atom is shared by two tetrahedrons, the chemical formula contains Si2O7, as in melilite or hemimorphite.
SOROSILICATE
Meaning of SOROSILICATE in English
Britannica English vocabulary. Английский словарь Британика. 2012