Gemstone Tumbling, Cutting, Drilling and Cabochon Making (by Jim Magnuson and Val Carver). It has about 100 pages of basic gemstone information and about 200 pages dedicated to photos and descriptions of over 100 gems and gem materials. One of the most popular gemstone books ever written, with over one million copies sold. Gemstones of the World (fifth edition) by Walter Schumann. You will increase your abilities, learn to save time and money, and have a great reference book that you will use again and again. In this book you will learn from an expert with extensiveД®xperience. Learning is the fastest way to improve the quality of rocks that you tumble. If you want chunky stones, then this rough might not be for you. Many people enjoy these, but some people prefer stones that are more chunky. Please know in advance that this rough often contains many thin pieces which make flat tumbled stones. The pieces of jasper that you will receive will be mostly between 1/2' and 2 1/2 inches in size and require little to no preparation. It rounds nicely in the tumbler and accepts a brilliant polish with TXP aluminum oxide polish. Tumble this rock using our Instructions for Jasper, Agate, and Chalcedony. Stones with some very interesting patterns are the result. They have been firmly cemented together with a translucent white, gray or black cement which is either chalcedony or quartz. The breccia fragments in this material range from bright red to deep red jasper. A 'breccia' is a rock that was broken into angular pieces at some time during its history, but then, a cementing material bound those pieces back into a solid rock.

This is a brecciated jasper from South Africa with a vivid red color.

Brecciated jasper