Emerald origin introduction and emerald origin difference

What do you think of when it comes to "lion"? zoo? Chanel? On October 30, 2018, it was given a new definition - a 5,565-carat top emerald from Zambia.

However, the "lion" is not only heavy, but its clarity and color tone is also excellent. "Clear and thorough, the color is perfect" is the evaluation of its miners. The emerald will be auctioned in Singapore soon, and now it has been valued at more than £2 million.

Zambia is the world's second-largest producer of high-quality emeralds. Its emeralds are green, blue-green and dark green. They are brightly colored and contain inclusions such as tourmaline and magnetite. In addition to Zambia, there are many high-quality emeralds in the world. What is the difference between the emeralds they produce? Let's move on.

祖母绿产地介绍,祖母绿产地区别

Colombia

As early as the middle of the 16th century, Colombian emeralds began to produce and were deeply loved by the European upper class. For centuries, Colombia has been the world's largest supplier of quality emeralds, accounting for about 80% of the world's total quality emerald production. In people's minds, "Colombia" has become synonymous with "quality emerald." Muzo emerald is the object of many consumers. In fact, Colombia is not the only mine in Muzo. In the Andes and Cottrera, there are two major emerald mines, Chivor and Coscuez. The emeralds produced in these three major mining areas also have their own characteristics.

The emeralds here are produced in mineral veins composed of minerals such as calcite, quartz, and pyrite. The color is generally darker green with some yellow hue. The interior contains a three-phase inclusion of serrated edges, as well as rare earth minerals of lanthanum fluorocarbonate and transparent diamond calcite.

Here, emeralds are produced in limestone and are generally blue-green in color. Its density is less than the emerald density of the Muzo mine, with red fluorescence under UV light, three-phase inclusions inside, and pyrite and albite inclusions.

The emerald and calcite here are symbiotic, produced in black carbonaceous shale and limestone fissures. The color is brighter and yellowish, translucent. Large and small cracks can be seen on the gemstone. The inclusions are generally inferior to the Muzo mining area. .

In addition, in the Muzo mining area and the Coscuez mining area, an emerald resembling “watermelon” – the Dabiz emerald – is produced. Its most striking feature is that in the center of the gemstone, it is mostly an emerald hexagonal column. There are six fine veins distributed radially outward in the column. The veins are composed of a mixture of colorless beryl, albite and carbonaceous. A few cores are black.

Zimbabwe

The Zimbabwe emerald deposit was discovered in 1957. In the Archean crystalline rock, the surrounding rock is a translucent schist and a chlorite schist, and high-quality emeralds can account for 5% of the total newly mined emerald. Zimbabwe's grandmothers are bright green, green, and the crystals are usually small, with typical long, curved needle-shaped tremolite inclusions inside.

Pakistan

The reputation of Pakistan's emeralds seems to be greatly reduced compared to Zambia and Colombia. Few people know that Pakistan is actually a "gem kingdom." The emerald it produces is of excellent quality.

Pakistan's emerald was first discovered in the Swat Valley in 1958. It is mainly found in talc chlorite schist and talc carbonate. The color grade span is large, the interior is rich in iron, so there is no fluorescence, the color is bright, the quality is high, and the interior of the highest quality emerald can be completely flawless. Under normal circumstances, there are usually flocculent carbonate mineral inclusions in the interior. Two-phase fluid phase inclusions as well as wire-shaped inclusions and stepped long lines. But unfortunately, the size of the Pakistani emerald is generally small, and the finished product can rarely be larger than 1 carat.

Brazil

Cloud-shaped inclusions in Brazilian emeralds, cloud-like inclusions in Brazilian emeralds

Brazilian emeralds were discovered in 1554, mainly in Minas Gerais, Goias, Bahia and Ceara, with pegmatite and mica schist. The pegmatite-type emeralds are mostly lighter in color, often with a blue hue and a high degree of clarity. The mica schist-type grandmother has a brighter green color, but more cockroaches.

Poverty Limiting Imagination Series - Emerald Poverty Limiting Imagination Series weighing 380 kg - Emeralds weighing 380 kg

Although there are many Brazilian emerald mines, most of them are more emeralds and the quality is not high. It was not until 1962 that high quality emeralds were discovered in Bahia. In 2001 and 2017, the world's first and second largest emerald ore were found in Brazil, weighing 380 kg and 360 kg respectively.

Yun Nan China

I know that Yunnan is famous for jade. I didn’t expect Yunnan to produce emeralds. Yunnan's emeralds are produced by shear bands or fissures, and the size of the ore body is small. Generally speaking, the emerald color in the area is mostly green and light green with yellow tone, and the quality is not very high. A small amount of emerald has good transparency and the color is mainly blue-green or dark green, which is the high-quality emerald variety of the mine. Due to the effects of transparency and fissures, Yunnan emeralds are generally ground in a curved shape.

In addition, Russia, Madagascar, India, and South Africa are also important emerald production areas, and the emeralds produced by them also have very obvious identification characteristics. For example, the bamboo-like actinite inclusions inside the Russian emerald; the needle-shaped actinite inclusions inside the Madagascar emerald; the comma negative crystal in India and the molybdenum inclusion in the South African emerald.

Having said that, although the gemstones of each place have different characteristics, the origin is not synonymous with the quality of gemstones. Even the emeralds of Colombia may have a very eye-catching embarrassment. Therefore, when choosing a gemstone, you must not "professionalism", the quality of the gem is equally important~

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