Rock Tumbler Gem Refill Kit - Namibia, Africa Blue Lace Agate Rough, Bold Banding, 4 oz

"Blue Lace" agate from Namibia, Southwest Africa is a variety of banded Chalcedony, a mineral of the Quartz family. It is found in an area where there has been much geological upheaval and the layers of chalcedony seemingly were formed over time from multiple episodes of deposition and dissolution. The chalcedony itself is hard and measures about 6.5-7 on Mohs's scale of hardness.Lace agate is a variety that exhibits a lace-like pattern with forms such as eyes, swirls, bands or zigzags. This high quality blue lace agate is predominantly creamy light to medium blue, with subtle layers of creamy browns, whites, and grays. Some examples may include clusters of mini-quartz crystals on the outer surfaces. See images above for random examples. Superior material for tumbling and cabbing. Takes an exceptional polish.This bag weighs 4 oz. (112 grams) and will contain an average of 2-3 large pieces.Each piece, depending upon it's weight will average about 1 1/2" to 2". Great refill for any beginner-novice tumblers, i.e., NSI, National Geographic, Dr. Cool, Smithsonian, Elenco & Pro Models Lortone, Chicago & Others. NOTE* This Bag DOES Not contain Grits, Findings, jewelry parts, or adhesives that may have been included with the original tumbler accessories. WARNING-Choking Hazard! Use Tumbling instructions from the tumbler manufacturer.