tektosilicate

Or tec·to·sil·i·cate

[tek-toh-sil-i-kit, -keyt]

noun

Mineralogy.

1. any silicate in which each tetrahedral group shares all its oxygen atoms with neighboring groups, the ratio of silicon to oxygen being 1 to 2.

Word History and Origins

Origin of tektosilicate¹

< Greek tēktó ( s ) molten + silicate