Die verhouding van die gewig van 'n edelsteen van dieselfde volume tot die gewig van water word die soortlike gewig genoem. Verdeel die gewig van die edelsteen in die lug deur die verskil tussen die gewig van die edelsteen in die lug en die gewig van die edelsteen in die water, and the value [...]
Kategorie -argiewe: Juwele nuus
Edelsteenminerale het dikwels 'n vaste, Onafhanklike kristalvorm, en die kristalroosterpatroon word bepaal deur die fisiese eienskappe van die mineraal. Gewoonlik sal die kristalvorm van die edelsteen die manier waarop die edelsteen gesny word, beïnvloed. Die kristallyne edelstene is verdeel in: Isometries, Tetragonaal, Seshoekige, Trigonaal, Orthorhombies, en monoklinies. Monoklinies), Drieklinies [...]
Volgens navorsing, emeralds were mined in Egypt on the west bank of the Red Sea more than 4,000 Jare gelede. 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. In 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 het redelik vroeg in die menslike geskiedenis verskyn. Mense in antieke tye het geglo dat dit 'n kragtige krag het, so dit het baie geheimsinnige legendes gegee en het 'n groot gebied in juweliersware beset. Antieke priesters het dikwels 'n pêrel op hul voorkoppe gesit om hul geestelike krag te versterk. 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: ronde, off-round, pear-shape, circular shape, and baroque. Oor die algemeen gesproke, 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, oor 9 na 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, [...]