Stone is the basic form of existence. It is hardy, colorless, and heavy, generally unmoving when left to its own devices. Color is what turns stone into other things, granting it growth, motion, reaction and other things, often at the cost of its immutability. The four colors infused purely into stone cause it to become either natural fire (orange), ice which melts into water (green), lightning (indigo), or oil (yellow). The art of sorcery is generally the manipulation of these colors, not ne...