The ratio of the weight of a gemstone of the same volume to the weight of water is called the specific gravity. Divide the weight of the gemstone in the air by the difference between the weight of the gemstone in the air and the weight of the gemstone in the water, and the value […]
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Gemstone minerals often have a fixed, independent crystal form, and the crystal lattice pattern is determined by the physical properties of the mineral. Usually the crystal form of the gemstone will affect the way the gemstone is cut. The crystalline system of gemstones is divided into: Isometric, Tetragonal, Hexagonal, Trigonal, Orthorhombic, and Monoclinic. Monoclinic), Triclinic […]
According to research, emeralds were mined in Egypt on the west bank of the Red Sea more than 4,000 여러 해 전에. Cleopatra’s favorite gemstone is emeralds. She not only named an emerald mine in her own name. In the name of Cleepedro, he also rewarded the ministers with the fine emeralds produced there. Thanks to […]
Among the colored gemstones, golden emeralds are expensive gems with low output but very popular. The color of chrysoberyl ranges from yellow to yellow-green and yellowish brown. It is similar to the shape of golden beryl. Since the refractive index and hardness of chrysoberyl are higher than that of beryl, the luster after cutting is […]
Both alexandrite and opal alexandrite belong to the golden emeralds among the colored gems, and they are treasures among gems. ~ 안에 1830, a color-changing gem was discovered in the Ural Mountains of Russia. This day happened to be the birthday of Emperor Kaiser Alexander II of Russia, so it was named Alexandrite after the Emperor […]
진주는 순도를 상징합니다, 유연함, 사랑과 평화. 진주는 달의 여신이 가장 좋아한다고합니다.. 서부 점성술에서, 진주는 또한 달을 대표하는 수호 석입니다. 고대 문명의 역사에서, pearls have a very lofty status and are one of the few gems that were regarded […]
Pearl appeared in human history quite early. People in ancient times believed that it had a powerful power, so it was given many mysterious legends and occupied a large area in jewelry. Ancient priests often put a pearl on their foreheads to enhance their spiritual power. These priests are usually the most powerful figures in […]
Pearl is the most valuable and most important kind of organic gemstones. It is formed by enveloping the pearl core with the pearl secreted by shellfish, so unlike other gemstones, which have crystal form and chemical composition, the main chemical composition of pearl is 90%. The above is calcium carbonate, the rest is water and […]
Although cultured pearls are artificially implanted into the nucleus, the results depend on biological phenomena. Even if the implanted nuclei are all round, they often appear in many different shapes under the nacre secreted by shellfish. It can be classified into the following types: 둥근, off-round, pear-shape, circular shape, and baroque. 일반적으로 말하면, the round […]
All pearls produced in the South Pacific are called South Sea Pearls. In terms of appearance, South Sea Pearls are generally larger in size, ~에 대한 9 에게 20 cm in diameter, and their luster and skin brightness are better than the other two pearls. South Sea pearls can be divided into white South Sea beads, […]