tectosilicate
Any of various silicate minerals, mostly aluminosilicates, with a three-dimensional framework of silicate tetrahedra with SiO2 or a 1:2 ratio, making up the greater part of Earth's crust.
Where this comes from
This definition is adapted from “tectosilicate” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.