Question

formulae for aluminium silicate

Answer 1

let me just tell you that this question of yours doesnt make sense!!!
Alumino-Silicates are one of the biggest groups of inorganic compounds on planet!
its composition can vary strongly and can even be decimal for example Al0,5 Si0,5 O3 (this is just nonsense example it isnt real)....

Answer 2

Lakshi you need to be more precise, you need to state which mineral composition you need...