Berita perhiasan

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Olivine is a magnesium iron silicate mineral and belongs to the orthorhombic crystal system. The crystals are short columnar. Complete crystals are rare. Most of them are irregular round granular aggregates. They have glass luster, transparan menjadi tembus cahaya, and hardness of 6.5-7.0. Olivine is a kind of self-colored gemstone, which is green due to iron content, and the more iron content, the darker the color. There are olive green, yellow-green, brown-green, and the best one is emerald green. Olivine forms a perfect isomorphic series due to the difference and change of magnesium and iron content. There are many varieties, and the intermediate components are the most common. Only those with higher magnesium content are regarded as gem-grade olivines, such as magnesium content. More than 90% is called forsterite, and the magnesium content is 70% ke 80%, called chrysolite. Selain itu, there are magnesium iron olivine, iron olivine and so on.

It is also worth mentioning that some meteorites containing gem-grade olivine are very rare and are called “heaven gems”.

The main evaluation basis for the quality of olivine is color, clarity and weight. Umumnya, the color is rich and bright olive green, with good transparency, few internal defects, and large particles as good products. Olivine processing is relatively easy. It can be cut according to its size and texture, and cut into round, bulat telur, olive, heart and other styles of faceted gemstones. It is used to make all kinds of jewelry, even small olives. Stone can also be used to make group inlaid gemstone jewelry. Although peridot belongs to the middle and low-end gems, it is very popular with people because of its pleasing color and moderate price. It is the most popular gem variety in the world today. What needs to be reminded is that because olivine is brittle, has poor toughness, and is not acid-resistant, it will break when exposed to heat suddenly, and it will be easily damaged or scratched in collision. It will be corroded in contact with acid. Be careful and take care of all links.

Olivine is mainly produced in various extruded or intrusive basic and ultrabasic rocks, yaitu, basic volcanic rocks with low silicon content. It is more common in nature and has many sources, but there are not many gem-grade olivines. . The world-famous producing areas include Zabagarde Island in the Red Sea in Egypt, Arizona in the United States, and Mogok in Myanmar. Selain itu, Brazil, Mexico, Australia, Russia, Kenya and China also produced output. Hebei and Jilin in China are the producing areas of high-quality olivine in the world. An olivine weighing 236.5 carats was found in Wanquan, Hebei, and it was named “North China Star”. There are rare treasures of olivine in many natural history museums in the United States, such as the world’s largest green peridot weighing 319 carats from the Red Sea in Egypt and another peridot weighing 289 carats from Burma. Smith College, United States. The London Geological Museum of England also has a collection of a 136 carat peridot from Burma.

 

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Desain Produsen Perhiasan OEM/ODM Kustom Perhiasan Anda Sendiri

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