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 [...]
Kategori Arkiver: Smykker nyheder
Ædelstensmineraler har ofte en fast, uafhængig krystalform, og krystalgittermønsteret er bestemt af mineralets fysiske egenskaber. Normalt vil ædelstenens krystalform påvirke den måde, ædelstenen skæres på. Det krystallinske system af ædelstene er opdelt i: Isometrisk, Tetragonal, Sekskantet, Trigonal, Ortorhombisk, og Monoklinisk. Monoklinisk), Triclinic [...]
Ifølge forskning, emeralds were mined in Egypt on the west bank of the Red Sea more than 4,000 For mange år siden. 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 [...]
Blandt de farvede ædelstene, gyldne smaragder er dyre ædelstene med lav produktion, men meget populære. Farven på chrysoberyl varierer fra gul til gulgrøn og gullig brun. Det ligner formen af gylden beryl. Da brydningsindekset og hårdheden af chrysoberyl er højere end for 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. I 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 [...]
Pearls symbolize purity, tenderness, love and peace. It is said that pearls are the favorite of the goddess of the moon. In Western astrology, pearls are also the guardian stone representing the moon. In the history of ancient civilizations, 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: rund, off-round, pear-shape, circular shape, and baroque. Generelt set, 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, om 9 til 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, [...]