There are four commonly mentioned types of non covalent interactions hydrogen bonds, ionic bonds, van der Waals forces, and hydrophobic interactions.

It was clear in theory that covalent bonds in biological molecules could provide the structural stability needed to hold genetic information in cells.

Physical properties The crystalline structure is held together with strong covalent bonding similar to diamonds, that allows moissanite to withstand high pressures up to 52.1 gigapascals.