Currently, diamond is regarded to be one of the hardest and most scratch-resistant natural materials in the world. Most diamonds found in na
Scientists Find Weird Ultra-Strong Diamonds From Obliterated Dwarf Planet
Lonsdaleite - Wikipedia
New Substance Is Harder Than Diamond, Scientists Say - The New York Times
Mystery diamond from space is harder than any diamond found on Earth
Scientists discovered a mineral that's even stronger than diamond
Diamonds really are forever
Can scientists make a material harder than a diamond? - Quora
This is what a Diamond still encased in Kimberlite looks like. : r/geology
Earth's seafloor may be destined to become diamonds
Scientists Create a Substance Harder Than Diamonds
A new look at the 'mineral kingdom' may transform the search for life