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Our objective is to provide you with us much information as possible. We display a chart of properties of most gemstones. We display a guide of how to care for most gemstones including pearls We display the dimensions of our products, and in some we also display the dimensions of the gemstones. Lucho Medina Designs is committed to provide you with the finest quality of design and workmanship of our product and to achieve it, all gemstones are cut to the proper shape and proportions to bring out their natural beauty.
PROPERTIES OF GEMSTONES
With a few exceptions most gemstones are minerals and they are classified according to their chemical composition and crystal formation into seven categories, called crystal system. with this brief information we hope to create an interest in the fascinating world of gemstones, for more information about this beautiful world of science check you local library. Isometric system [ regular and cubic ] Tetragonal system [ four -sided, or tetragonal ] Hexagonal system [ six sided ] Trigonal system [ rhombohedral -or tree sided ] Orthothombic system [ orthothombic or losenge- shaped ] Monoclinic system [ singly inclined ] Triclinic system [ trice inclined ]
HARDNESS - 1 to 10 - meaning as diamond 10 and or as something that can be scratched with a fingernail.-1 SPECIFIC GRAVITY, or relative density, is the weight of the stone compared with the weight of the same volume of water. REFRACTIVE INDEX, the amount of refraction of crystals is constant in the various types of gems,the amount of the refraction is called refractive index and is defined as the proportional relation between the speed of light in air to that in the stone. Example. Speed of light in air 300000 km / sec. Speed of light in diamond 125000 km / sec.
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