(from the article `mineral`) ...where tetrahedrons share all their oxygen ions, an infinite three-dimensional network is created with an SiO2 unit composition. Minerals of this ... Almost 75 percent of the Earth`s crust is composed of minerals with the three-dimensional framework of the tectosilicates. All oxygen atoms of the ... [2 ...
Found on
http://www.britannica.com/eb/a-z/t/20
Mineral with a three-dimensional framework of silicate tetrahedra. This is the most common form of minerals in the Earth's crust, which include quartz and feldspar.
Found on
http://www.scientificpsychic.com/etc/geology-glossary.html
No exact match found.
