inosilicates

Aegirine is a member of the clino pyroxene group of inosilicates.

Inosilicates consist of tetrahedra repeatedly bonded in chains.

Inosilicates, such as pyroxenes, have a long chain of SiO tetrahedra each sharing two corners.

Inosilicates contain two important rock-forming mineral groups; single-chain silicates are most commonly pyroxenes, while double-chain silicates are often amphiboles.

Tschermakite and all the hornblende varieties are inosilicates, and like the other rock forming amphiboles are double chain silicates (Klein and Hurlbut, 1985).

Inosilicates are chain silicates; single-chain silicates have two shared corners, whereas double-chain silicates have two or three shared corners.