Which of the following silicate minerals have 3-dimensional framework structures?
A)quartz and halite
B)feldspars and quartz
C)hornblende and olivine
D)micas and gypsum

Question

Quizplus · Accepted Answer

Feldspars and quartz have 3-dimensional framework structures. Quartz is composed of SiO4 tetrahedra that are linked in a 3D network, while feldspars consist of a combination of SiO4 and AlO4 tetrahedra that form a 3D framework. Hornblende and olivine have chain and isolated structures respectively, and micas and gypsum have layered structures. Halite is a halide mineral, not a silicate mineral.

Which of the Following Silicate Minerals Have 3-Dimensional Framework Structures