The semi-precious gemstone not belonging to corundum is ___________

Pick the correct statement about talc.

Mica is ______

How does hardness vary with decomposition?

Metallic minerals belong to which category with respect to colour?

In the atomic structure, each oxygen atom is shared by how many tetrahedra?

The behaviour of a mineral towards the forces that tend to destroy it is called _______

The carbonate minerals have high hardness.