sorosilicate

[ sawr-oh-sil-i-kit, -keyt, sohr- ]

noun

, Mineralogy.

1. any of the silicates in which each silicate tetrahedron shares one of its four oxygen atoms with a neighboring tetrahedron, the ratio of silicon to oxygen being two to seven.

Word History and Origins

Origin of sorosilicate¹

< Greek sōró ( s ) heap + silicate