Wednesday, July 16, 2008

Other Physical Characteristics

A gem's effect on light provides many of its attractive features. Other kinds of behavior it may exhibit are just as important and interesting. They, too, are the direct result of the chemical composition and atomic structure of the gemstone species. Among these characteristics are hardness, cleavage, density, and certain electrical properties. For most gemstones, a few of these characteristics—such as hardness, density, and refractive index—are sufficient to make positive identifications. That goes also for 3 stone rings.

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