Granite – is composed of some of the hardest natural materials on earth. It is made from a variety of minerals such as, quartz, feldspar, and mica. Granite is also heat resistant, you can take a dish right from the oven to countertop without the risk of heat damage.**Stone dishes make crack when placed on a cold surface directly from oven, please use a trivet/towel/potholder. Resin fill may incur damage, please use care.