Rock Digger

Did you always wanted to add your own blocks to minecraft and generate them in the world?

But you don't know how?

Well don't look any further, because today I have this wonderful mod, just for you!

Simply add a .json file into the rockdigger config folder...
Toss in a texture...
Launch MineCraft...
Tada! You just added your own block to MineCraft.

The .json file is quite simple :

{ id: 593, stairid: 594, slabid: 595, nameid: "rhyolite", name: "Rhyolite", rarity: 100, vein: 10, height: 10, range: 5,
altergen: true,
biomes: [ { biometype: FOREST } ] }

 This will spawn Rhyoliteonly in Forest biomes Types. with a rarity of 100 a max veinsize of 5 and between y32 and y92. And adds stairs and slabs.

Altergen true means it will generate stairs and slab, if set to false, or completely left out they won't generate.

Source Available : https://bitbucket.org/LordDusk/rockdigger/src