CrystAlch

First, you must find crystal ores (found in veins of 5+-) . Then, you use a diamond pickaxe to mine them. When you obtain some crystals, you can use them to double some stuff. Here are some recipes:



Also works for iron and gold ingots.
Some recipes are more advanced, and require you to make a crystal block:

Advanced recipes:


Crystals and Crystal blocks currently have one more use than just for use in crafting recipes. A crystal block will burn in a furnace enough time to smelt a stack of stuff!
The textures look like the vanilla emerald block, but they're a bit different. If you can make better textures for me, make them (32x32, each in it's own file) and send them to me. I will use them and give credits to the author.
Got any ideas for new content? Feel free to comment!
This mod is open source. For a copy of source, click here.