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Quick Answer. Non-metallic minerals are minerals that have no metallic luster and break easily. These are also called industrial materials and are typically some form of sediment. Non-metallic minerals are not malleable.
Network Covalent, Ionic, and Metallic Solids. Most substances that are in a liquid or gas state are molecular. Three distinct types of non-molecular solids are: Network covalent solids, Ionic solids and metallic solids.Diamond. Pure carbon. 3D structure based on a tetrahedrally bonded carbon atoms: Very hard, Very high melting point, Does NOT conduct electricity.Transparent, strong and very hard.hree distinct types of non-molecular solids are: Network covalent solids, Ionic solids and metallic solids. Diamond. Pure carbon. 3D structure based on a tetrahedrally bonded carbon atoms: Very hard, Very high melting point, Does NOT conduct electricity. Transparent, strong and very hard.