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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019