Cragwood is a block of Wood with auburn-brown bark and pale brown wooden core taken from a Cragwood-trees. Cragwood-trees can be found in Forests, Woodlands and Grassland biomes. Usually these Biomes are rather safe from spreading forest-fires because of their mild temperature. However as all blocks of Wood and Leaves are flammable, you might still want to take care not to place torches directly under such flammable blocks, especially in warmer areas.