tektosilicate
or tec·to·sil·i·cate
[ tek-toh-sil-i-kit, -keyt ]
/ ˌtɛk toʊˈsɪl ɪ kɪt, -ˌkeɪt /
noun Mineralogy.
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.
Origin of tektosilicate
< Greek
tēktó(s) molten +
silicate