Are there kids out there who think the real world actually works like Minecraft? Geoscience Australia, a department of the federal government, seems to think so.
So they've released a chart that compares the minerals found under the ground in Minecraft to their actual, IRL properties.
If you're old enough to be reading this website, you likely (hopefully?) won't find it educational, but you may find it entertaining:
Putting cobblestone into a furnace will not create stone. It would, in fact, achieve nothing but a very warm rock.