This Valentine's Day, just remember that wurtzite boron nitrides are a girl's best friend.

Pretty though it is, forget the diamond ring.

Scientists have calculated that a material called wurtzite boron nitride (w-BN) has a greater indentation strength than diamond.

The scientists also calculated that another material, lonsdaleite (also called hexagonal diamond, since it’s made of carbon and is similar to diamond), is even stronger than w-BN and 58 percent stronger than diamond, setting a new record.

(PhysOrg.com)