Currently, diamond is regarded to be one of the hardest and most scratch-resistant natural materials in the world. Most diamonds found in na
This is what a Diamond still encased in Kimberlite looks like. : r/geology
Scientists discovered a mineral that's even stronger than diamond
Earth's rarest diamonds form from primordial carbon in the mantle
Obsidian – Black Glass Sharper than Diamond – my Science Blast
Rare blue diamonds form deep, deep, deep inside Earth
Tiny diamond impurity reveals water riches of deep Earth
Have Scientists Really Found Something That's Harder Than Diamond? - Geology In
Diamond, Definition, Properties, Color, Applications, & Facts
Diamond stays strong under highest pressure ever achieved in the lab