Selasa, 29 Desember 2009

Sapphire

ملف:Cut Ruby.jpg
Sapphire Gemstone Ohmrallon. Sapphire is different from the color red to light red color is caused mainly by chromium. Its name comes from the Latin for red rubber. Natural ruby rare, but synthetic rubies (sometimes can be manufactured relatively cheap. Other types of gem-quality corundum are to rubies. It is considered one of the four precious stones, with rubies, emeralds and diamonds. Rubies are mined in Africa, Asia, Australia, Greenland, Madagascar and North Carolina. are often found in Myanmar (Burma), Sri Lanka, Kenya, Madagascar, and Cambodia, but also in the U.S. states of Montana, North Carolina and South Carolina. Mogok Valley in Upper Myanmar has produced the finest rubies but, in recent years, the very few good rubies have been found there. The unique color in Myanmar (Burma) rubies is described as "pigeon's blood". It is known in the trade "Mogok" rubies. In central Myanmar the area of Mong Hsu also produces rubies. depository in Myanmar is situated in the Non-Aligned Movement Q. rubies in 2002 there were in the river and Waseges Kenya. Sometimes spinels are found along with rubies in the same rocks and are mistaken for rubies. But one fine red spinels may approach the average ruby in value. rubies have a hardness of 9.0 on the Mohs scale of mineral hardness. sapphire crystal was used for the production of manufactured the first laser.

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