Sapphire also has a significant dichroism, viewed from one direction as compared to blue-green to blue, from another direction. The other gems coloring different natural sapphire, pursuant chrome hearts store to which can be distinguished.
In addition, the easiest method available Determination of hardness, natural sapphire depicts the traces in topaz and other blue gem difficult depicts the traces in topaz, buy jewelry, such as around no instrument, as long as there is a topaz sometimes able to solve some problems.
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The Sapphire's English name is chrome hearts store Sapphire, comes from the Latin Spphins mean blue. Mineral name for sapphire corundum, is a the corundum group minerals. Ruby gemstone industry other colored gem corundum collectively referred to as sapphire.
Sapphire chemical composition of chrome hearts store aluminum oxide (Al2O3), containing trace elements titanium (Ti4 +) or iron (of Fe2 +) and blue. Trigonal system. Crystal form often has a barrel-shaped, short columnar, tabular geometry granular or dense block. Transparent to translucent, shiny glass. Refractive Index 1.76-1.77, a birefringence of 0.008, a dichroic. Non-homogeneous body. Sometimes special optical effects - starlight effect. The hardness of 9, and a density of 3.95-4.1 g / cc. No cleavage, parting development. In certain conditions, can produce beautiful six shooting stars, known as the "Star Sapphire.
Sapphire can be divided into blue chrome hearts store sapphire and Chromic (blue) sapphire. Color "cornflower blue" India is the best. Is said to sapphire to protect the king and the monarchy from harm, "King said of the Stone. International gemstone community sapphire "September birthstone, a symbol of love, loyalty and constancy. Sapphire is one of the world's top five high-grade precious gems.
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