Scientists Create Crystal Stronger Than Diamond

First direct measurements suggest that lonsdaleite, also called hexagonal diamond, is the strongest and hardest mineral found in nature.

Graphene-based armor could stop bullets by becoming harder than

Materials: Scientists create 'ultrahard' GLASS that's even harder

Lonsdaleite - Wikipedia

Diamond Gemstones: History, Meaning, Value & More

Scientists Discover Material Harder Than Diamond

Asteroid impacts on Earth make structurally bizarre diamonds

New crystal produced with gunpowder is stronger than diamond - Big

Carbon Crystals Harder Than Diamond Found In Finnish Meteorite

Scientists Confirm Hexagonal Diamonds Are Stronger Than Natural

Researchers create 'near unbreakable substance' to rival diamonds