Diamond
The most fabulous and hardest thing in the world! Those hard nipples!
We'll tell you more... hold your feet... *cough*
This particular Diamond was mined in Trapland! XD And unfortunately, the poor thing is cut... I think people should really stop cutting diamonds, it's a crime because they look so much prettier and natural when uncut! Actually nevermind, they don't... XD
Anyway, even though Diamond is naturally incredibly useful to humans due to its impressive hardness, you could make amazing tools with it such as pickaxes, but humans are idiots so instead of making diamond pickaxes they set the price so high that nobody can afford it anymore. In the end, Diamond is beautiful but so overrated...