Crazy Lace Agate is a variety of banded Chalcedony, a mineral of the Quartz family. It is predominantly white, with layers of creamy browns, blacks and grays. Some may include layers of yellow ochre, gold, scarlet and red. Agate is sometimes called the earth rainbow because, in its various forms, the concentric bands in nature form nearly every color the earth can produce, including a colorless form. See images above for samples of finished/polished examples.This bag weighs 8 oz. and will contain an average of 10-12 pieces. Great refill for any beginner-novice tumblers. NOTE* This Bag DOES Not contain Grits, Findings, jewelry parts, adhesives that may have been included with the original tumbler accessories. Use Tumbling instructions from the tumbler manufacturer.