Question

What type of silicate is the talc?
(A) ring
(B) branch
(C) pyro
(D) sheet

Answer 1

Answer:

ring type of silicate is talc

Answer 2

Talc is a sheet silicate.

Explanation:

• The chemical formula of talc is Mg3Si4O10(OH)2. It is the main ingredient of soap stone.  
• Silicates are minerals of silicon and oxygen in tetrahedrals of SiO44- units. These units are linked together in various patterns.
• Depending on how these tetrahedral units are linked, the silicates are classified into ring, branch, pyro or sheet.
• The general formula of Sheet silicates is (Si2O5)n2n- . Each unit of SiO4 tetrahedron shares three oxygen atoms with others and hence forms two-dimensional sheets.