White and gray banded agate slabs will contain a miniumum of 5 square inches. This India material is high quality, dense, fortification agate in shades of white to blue gray. (Remember fortification agate is banded agate which will show bands that will bend or turn in places which makes one think of a fort viewed from high above.) Some of the material is thought to have some iris effects which will show when slabbed very thin and polished. ( To check for iris effects: hold your finished specimen at arms length toward a light or candle and the iridescence or colors will show when viewed through the slab with a light behind the slab.) If you want a larger slab, order 2 or more slabs. Stock 290s.