History Dimaond ....
Diamond name comes from ancient Greek, "correct", "immutable," "Unbreakable, untamed," the "I overkill, I tamed." The diamonds are believed to have been first recognized and exploited in India, where significant alluvial deposits of the stone could be found centuries ago along the rivers Penner, Krishna and Godavari. Diamonds have been known in India at least 3,000 years, but more likely 6000 years.
Diamonds are precious like jewels, because the use of religious icons in ancient India. Their use of engraving tools also dates early in the history of mankind. The popularity of diamonds increased by 19 st century because of increased supply, improved cutting and polishing techniques, growth in the global economy and innovative and successful advertising campaigns.In 1772, Antoine Lavoisier, the lens used to focus the rays of the sun, a diamond in an atmosphere of oxygen, and showed that the only product of combustion of carbon dioxide, indicating that the diamond is composed of carbon. Later, in 1797, Smithson Tennant repeated and extended for the experiment. Proving that the combustion of diamond and graphite in the same amount of gas released, he founded the equivalence of these chemical substances.
The best use of diamonds used in jewelry known today is the use, ornament of which dates back to antiquity. Dispersion of white light spectrum of colors is the main characteristic of gem diamonds Gemological. In the 20 th century, experts in gemology have developed methods of diamonds and other precious stones to classification according to the characteristics most important to their value as a pearl. The four properties are informally known, the four Cs, are now commonly used in the basic description of diamonds: these are carat, cut, color and clarity. Large, perfect diamond is well-known example.
No comments:
Post a Comment