Describe the bug
Migmatite cobblestone can't be smelted in a kiln even tho it can be smelted in a furnace

To Reproduce
Place down a kiln and try to put the cobblestone in there. It won't allow you to use it in a kiln.

Expected behavior
Allowing the block to be put in a kiln like the rest of the other cobblestone variants.

Screenshots

Info (please complete the following information):

• Modpack Version: 2.77.5
• Server or Singleplayer: Singleplayer
• Version the world was created on: 2.77.5

Additional context