What is an inosilicate in mineralogy ?
Inosilicates : definition
In the case of chains (pyroxenes), the tetrahedra are linked by two neighboring vertices. The formula of the group is then written [SiO3]2-, [Si2O6]4- or [Si3O9]6-.
The ribbons are made up of two simple chains joined together by the pooling of oxygen ions. The formula of the group is then [Si4O11]6- (amphibole group).
