The Arizona petrified wood slab is an unpolished slab weighing about 12 lbs. The large fossilized slab measures approximately 14" x 11" x 1" and will be gorgeous when polished on a lap machine. The beautiful colors of red, tan, gray/blue, etc. and the large size of the AZ slab are rare for petrified wood. Only one slab of the AZ petrified wood available.