Berita perhiasan

rose gold hoop earrings The formation and origin of rubies

Diposting di oleh Kingjy

Rubi, the mineral name is corundum, depends on the chromium content in it. Since crystals often appear double crystals, they are prone to cracks, and the increase in chromium content will increase the color of rubies. The rutile contained in it can produce silky appearance or arc-shaped visible starlight effect. Heating or radiation can remove rutile and change transparency. And color.

The English ruby ​​of ruby ​​is derived from the Latin ruber, meaning “red”, which was translated as “red thorn” in ancient China. In Sanskrit, ruby ​​has many beautiful names, indicating that the Indian people cherished it very much.

There is a legend in Myanmar since ancient times that the ruby ​​was the third egg hatched by the dragon king and was a gift from the gods. Rubies are also a symbol of passion and strength.

Rubies are distributed in rocks of different genesis. They are mostly produced in high temperature and aluminum-rich and silicon-deficient environments. They can be magmatic rocks related to volcanic activity or metamorphic rocks related to gas-forming hydrothermal fluids. Placer deposits are an important source of gem-grade rubies.

The world’s rubies are mainly produced in Southeast Asia and surrounding areas and eastern Africa, including Kenya and Tanzania. Naturally produced gem-grade rough stones account for only 1% of the ore, of which:

Burma-The highest grade of Burmese rubies is called “pigeon’s blood.” Pigeon blood red is the most famous ruby, Lu Gui. The largest known pigeon blood ruby ​​weighs 55 karat. The largest ruby ​​is produced in Myanmar and weighs 3 450 ct.

Thailand-Thailand is also an important producer and trading center of rubies. Nearly 70% of the world’s high-quality rubies are produced in Thailand. Thai rubies have high iron content, darker color, low transparency, and are mostly dark red and brownish red.

Sri Lanka-Sri Lankan rubies are famous for their high transparency, soft color, and large particles.

China-Chinese rubies are mainly found in Yunnan, Anhui, Qinghai and other places, among which Yunnan rubies are slightly better. Namun, due to the development of cracks, high inclusions and impurities, most of them can only be used as cabochon gems, and rough stones with faceted gem quality are rare.

 

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