It is Carbonne, a mineral made from a mega meteoroid, steel and silk.
The second strongest building material is obsidian even though it can't get blown up.
No. It is not.
osmium
The strongest material in the survival mode of Minecraft seems to be obsidian. It cannot be blown up by TNT or creepers, and can only be harvested by a diamond pickaxe. Another opinion is that bedrock should be considered the strongest material as it cannot be mined at all in survival mode.
bone Enamil
Linen
Steel
Leather is considered to be the most durable material for luggage.
Diamond is the strongest material know to man.
Rubber, don't be stupid.
Spheres are the strongest shape for a given amount of construction material; cylinders are the next strongest.
It's carbon