What are nesosilicate in mineralogy ?
Nesosilicates : definition
Because of this independence and the absence of constraining sequences, the neosilicates have a high symmetry (many belong to the cubic and tetragonal system), and few clear cleavages. The degree of substitution of Si by Al is usually low, except for the group of alumina silicates.
Nesosilicates include around 175 minerals, including geologically essential groups and minerals : garnets, olivine, zircon, topaz, staurolite, (alumina silicates : andalusite, kyanite, sillimanite), etc...