Nucleated pearls are divided into two parts, the nucleus and the nacre, from the inside to the outside. The innermost layer is the nucleus. The nacre is a crystal of keratin and calcium carbonate formed on the surface of the pearl nucleus or foreign body by the secretions of the pearl oyster during cultivation or […]
저자 아카이브: Kingjy
There are many places where pearls are produced in the world. Natural pearls are mainly produced in the Persian Gulf, Red Sea, South Pacific, Gulf of Mexico, 등. They can be divided into Eastern Pearl, Southern Pearl, Australian Pearl, Southern Ocean Pearl, Black Pearl, Oriental Pearl, 등. Due to pollution, the yield and quality of […]
The quality evaluation method of pearls can be said to be very systematic and scientific, just like the 4C grading of diamonds. The international evaluation of pearl quality mainly includes the following aspects: 색상, luster, 투명도, 조직, 모양, 크기, 등. In the case of cultured beads, there is also the problem of the thickness of […]
Aquamarine (Aquamarine), the mineral name is beryl, is a beryl with a lot of iron elements, as a long-standing gemstone, in the 19th century, people used aquamarine as amulet to protect sailors. Aquamarine also has some historical legends intertwined with expectations and superstitions. It has long been considered a symbol of happiness and eternal youth, […]
cryptocrystalline quartz jade. Chalcedony and agate have a very long history. About 100 백만 년 전, underground magma spewed out due to the changes in the earth’s crust. When the lava cooled, steam and other gases formed bubbles, and the bubbles were sealed when the rock was frozen to form many holes. After a long […]
독일 안경 브릴은 베릴에서 뻗어 있습니다, 가장 초기의 광경 렌즈는 무색 Beryl과 함께 접지 되었기 때문에. Beryl Gemstones의 색상은 분류 기준 중 하나입니다.. (1) 에메랄드. 크롬 또는 철의 색상 특성으로, 에메랄드 녹색이있는 녹색 베릴은 약간 노란색 또는 파란색 일 수 있습니다., 그리고 그것의 전형적인 특성은입니다 […]
(1) 색상. The best emerald color is that strong emerald green with a little blue tone, that green will make people unforgettable. Positive green and slightly yellowish grass green are also very good, while dark green and light green are inferior colors. (2) 명쾌함. The clarity of emeralds is generally not very good, with large […]
The main varieties of chrysoberyl gemstones, cat’s eye and alexandrite, are important precious gems in the world. In addition to cat’s eye and alexandrite, chrysoberyl gemstones also include chrysoberyl, which refers to gold that does not have the discoloration effect and the cat’s eye effect. Emerald gems. 그중, there are no special optical effects, […]
~ 안에 1830, a gem that changed color was discovered in the Ural Mountains in Russia, namely alexandrite. This day happened to be the birthday of Emperor Caesar Alexander II of Russia, so he named him Alexandrite after the Emperor of Russia. It was also called “Alexandrite” in the market. The color of alexandrite changes with […]
(1) 색상. The beeswax yellow is the best, followed by green, yellow-green, yellow-brown, gray-green and gray-yellow again. When the light illuminates the gemstone from the side, half of the cat’s eye is its body color, and the half becomes other colors, which is also a good performance. As for cat eyeliner, the brighter and more […]