Our country’s jewelry industry has a long history and brilliant culture. According to archaeological findings, ancient Chinese ancestors began to use gold to make jewelry in the Shang Dynasty. For eksempel, in the mid-Shang tombs of Liujiahe, Pinggu County, Beijing, two imitations of golden arm rings and one gold earring were unearthed; in Xishilou Gold […]
Kategori Arkiver: Smykker nyheder
According to the traditional psychology and consumption customs of different countries (ethnic groups), diamanter, Rubiner, safirer, smaragder, high-quality cat’s eyes, alexandrit, sorte opaler, and extra-grade jade are usually listed as high-grade gemstones. Their prices are extremely expensive, a few per carat. The prices range from thousands to tens of thousands of dollars, and the prices […]
To determine the relative density of gemstones is to use Archimedes’ principle, and a precise balance can be used to determine the quality of gemstones and the buoyancy experienced. For eksempel, if a gemstone with unknown name has a mass of 5.2 grams in the air and 3.3 grams in water, its buoyancy is 5.2 […]
An important indicator to measure the effect of wax setting is the stability of gemstones. The gemstones after wax setting cannot show discoloration, cracking, chipping and other problems. Because in the wax setting casting process, gems must withstand the thermal shock of high-temperature roasting and high-temperature molten metal during casting, the gems must be able […]
The first situation occurs mainly because some gemstones are not suitable for wax setting casting. Gemstones with developed fissures are likely to change color after being subjected to high temperature and thermal shock. Some gems (such as amethyst, blå topas, citrin, osv.) are unstable in color when exposed to heat, so this type of gem […]
Inclusions are the formation of minerals, due to the different internal physical and chemical conditions, the lattice defects caused by another substance are filled, and the resulting form of a material independent of the main mineral itself. Its essential characteristics are: the physical, chemical properties and occurrence form are independent of the carrier mineral, og […]
I moderne tid, when science and technology are advanced, most gem names have precise meanings. Rubin (English name Ruby) is defined as a red corundum gemstone. Any other red gemstone, no matter how bright and cute it is, ikke kan kaldes “rubin”. It can only be called “Red XX Stone”. The evolution of the term […]
Imidlertid, dette par perle “søstre” er ikke som “mand og kone min” realgar og orpiment, de “tvillingemine” galena og sphalerit eksisterer ofte sammen, men bor ofte på den ene side. Årsagen er, at de to er dannet i forskellige miljøer: rubies are mostly produced under geological and geochemical conditions that are high […]
Ifølge data fra Hong Kong og Taiwan, Kina: På det internationale smykkemarked, prisen på rubiner af høj kvalitet, der vejer mere end 10 ct, er mere end dobbelt så høj som for de bedste diamanter eller smaragder. Den kemiske sammensætning af rubin og safir er aluminiumoxid (AI. 0,), som skal være farveløs, når den er ren. Men i naturen, […]
Siden 1950'erne, Birthstones (Birthstones) har været meget populære i vestlige lande. Rubiner er opført som fødselssten i juli og safirer er fødselssten i september. Som et resultat, begge er blevet lavet om til high-end tilbehør såsom herre- og dameringe, corsager, og slips, og er begunstiget af kunderne. Red and sapphire […]