Manganese:
1. It is a Metallic mineral.
2. Very hard and brittle in nature.
3. Raw material for iron and steel basic raw material for alloying.
Mica:
1. It is a Non-Metallic mineral.
2. Translucent, splitable into thin sheets, elastic and incompressible.
3. Exclusively used in electrical goods and also for making lubricants, paints, varnishes etc.