Heavy Dreerstone

About
Heavy Dreerstone is the The Dreers equivalent of Stone. Heavy Dreerstone takes an Emerald Pickaxe or better to mine, and drops itself when mined. Heavy Dreerstone takes about 10 seconds to mine with an unenchanted Emerald Pickaxe. It makes the same walking over and mining sounds as stone, but plays the sound of a pickaxe breaking when mined.

Generation
Heavy Dreerstone is used like Granite and Andesite are used in the Overworld. It is also commonly found around naturally-occuring Dravium or Lightstone Ore.