The reason why diamonds are precious is because of its extreme hardness and difficulty in mining. But there are 10 species in the world that are more rare than diamonds. They are not only sparsely populated, but also costly and difficult to mine. Even so far it is difficult to cut a gemstone with a complete shape. But its unique color and luster still make the world's gem lovers obsessed with it. I am afraid that I want to get them, and the spiritual stone of those who want to "repair" can be beautiful!
Red Beryl
Red beryl, also known as red peach green jade. It was first mentioned in 1904, when mineral experts thought it was similar to jade and sapphire, hence the name red emerald, blood jade, but in fact it is rarer than these two gems. Red beryl is only found in Utah and New Mexico; because of the difficulty in mining, the red beryl does not have the economic value of jewelry. To extract 1 carat of red beryl, you have to spend 10,000 US dollars (about NT$300,000). It is not surprising that it is so precious and rare.
Boronite (Jeremejevite)
Boraxite is a very rare blue borate mineral, first discovered in 1883 by Mt. Soktui, Nerschinsk in the Adun-Chilon Mountains of Siberia.
é“Al-magnesium-zinc (Musgravite)
é“Almagnesite was first discovered in South Australia in 1967 and was named after the discovery of the Musgrave Mountains in Australia. Later, a small number of mineral samples were found in Greenland, Madagascar and Antarctica. Until 2005, only eight gemstones with obvious shapes and pure colors were cut in the world, and one of the world's largest Musgravite gemstones was owned by Sri Lanka's jewelry export company.
Red Diamonds (Reddiamonds)
Red diamonds are the rarest of the color diamonds. The world's largest red diamond was discovered by a farmer in Brazil in 1960. The diamond is called the Moussaieff Red. It is a triangle and weighs 5.11 carats. Although the weight of this diamond is not worth mentioning compared to other diamonds, it is the largest diamond in the red diamond. Its value is much higher than its weight. Hong Kong Christie's (chrISTLE's) auctioned a 0.95k carat round red diamond in New York in April 1987. The transaction price was as high as $880,000, which was an average of $920,000 per carat. Drill the world record for the highest transaction price per carat.
Silicon gibbsite (Grandidierite)
Although the first complete specimen of borosilicate is produced in Sri Lanka, it can only be found in Madagascar, Africa. The borosilicate magnesia has the same characteristics of reflecting colorful polarized light as the Alexanderchrome and Tanzanite mentioned below.
Silicon borosilicate stone (Poudretteite)
Silicon borosilicate was first discovered in Quebec, Canada in the mid-1960s, but it was not given a name at that time; it was not until 1987 that it was considered a new mineral name. However, due to the fact that it is too rare, sodium borosilicate is rarely discussed.
Blue cone mine (Benitoite)
When the blue cone mine was discovered in 1906, it was once mistaken for sapphire. At present, the only source of blue cone mine is San Bailey County, California. Although some samples of blue cones have been found in Arkansas and Japan, it is difficult to cut them into gemstones. The blue cone mine is light blue or colorless and has a record of pink gems; however, the most special feature of the blue cone is that it emits dazzling blue fluorescence under ultraviolet light.
Tanzanite
Tanzanite, this gem is like the twilight sky of Tanzania. The color is dark blue with purple and has a strong pleochroism, but the hardness of the gem itself is 6.5 degrees Mohs hardness, and because Tanzania has long been in a civil war, so Very poor, the mining of gems is not easy, the production is scarce, and the crystal particles are not large, so in general, the chance of being able to buy more than 3 to 5 carats is not high. So far, Aru, Tanzania The area around Shashi is the only place where Tanzan Blue is produced. The Tanzanian Minister of Mines said that this is God's gift to the people of Tanzania.
Alexander Colorite (Alexandrite)
The Alexander Chameleon is one of the five most precious gems. Because of its green color in the sun and the red color effect under candlelight and incandescent lamps, many poets praised the stone as "the emerald in the day, the ruby ​​in the night". When you put an Alexander Chamelt in your hand and play it, it will refract colorful polarized light as it rotates. On October 23, 2007, the Christie's Jewelry and Jade Jewelry Auction in Hong Kong was previewed. The model showed a 212.76 Cara giant cat-eye Alexander chameleon.
Aluminum boron zirconium calcium (Painite)
A new gemstone mineral discovered in the gemstone mine of the Mogok region in Myanmar in 1951. The specific chemical composition of the mineral is unclear. The mineral is transparent and dark red crystal. At present, only one piece of 1.7 g specimen collected by the Pain collection in the world. . It was internationally recognized as a new gemstone mineral in 1957 and was listed as the rarest gemstone mineral in the King's world record in 2005. Until 2005, only 25 samples were found worldwide. However, due to the new identification technology, the number of crystals of aluminum-boron zirconium is also increased, but the number of stones that can be cut into high-quality stones is still very small.
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