Composite gem stone and production method

Abstract From the Canadian patent

Composite or assembled gemstones are usually made by laminating together several layers of rock or mineral substances. Established lapidary processes used in making these stones are very effective when the gemmaterial part of the composite stone is of stable composition. Such material can then be easily cut and ground into the smooth flat layers necessary for laminating. These same methods, however prove much less effective when, applied to poorly-consolidated gem material: material that because of its friable nature tends to chip and flake when attempts are made to cut it into layers. My process is designed specifically for use on this latter type of gem material and is especially suited …