Since the "Titanic" movie hit, when everyone knew that the heart of the sea gem in the movie was tanzanite, it attracted the attention of the jewelry market, and tanzanite became more popular. As the zoisite to which tanzanite belongs, its origin is scattered in many places in Europe and Australia, but the main origin [...]
Kategoriarkiv: Smykkernyheter
Olivine is a magnesium-iron silicate mineral, belonging to the orthorhombic crystal system. Brytningsindeksen er 1.654-1.690, and the birefringence difference is quite high as 0.036. From the table of the gemstone, the ridgelines of the bottom facet become overlapping The double shadow is because of the high birefringence difference, spredningshastigheten er 0.020, [...]
Before the development of synthetic technology, the scientific name of hyacinth zircon is the closest natural gemstone to diamond, so zircon can be said to be the earliest natural substitute for diamond, because it has a fairly high refractive index and its dispersion rate is close to that of natural diamonds. Sammenlignet med diamanter, de [...]
Moonstone is a kind of Feldspar gems of Feldspar. Feldspar and quartz are very common and very important minerals in the earth's crust. According to the characteristics of feldspar, it can be divided into Orthoclase and Plagioclase. Moonstone is a kind of orthoclase, med en brytningsindeks på 1.518-1.526, en dobbeltbrytningsforskjell på 0.005, en [...]
Kalsitt er et kalsiumholdig karbonatmineral. Det er et veldig viktig mineral i jordskorpen. Det brukes ofte som undervisningsmateriell for å forklare egenskapene til edelstener, men det brukes sjelden som smykker fordi det har en veldig høy dobbeltbrytningsforskjell og en perfekt løsning. Grunn, although other gems also have [...]
In the gem trade, "Carat" is often used as the unit of quality. The term carat, originally in Greek, means the seed of a kind of "carob tree" that grows on the Mediterranean coast of Europe. The ancients believed that the quality of each seed was the same, so it was used as a weight [...]
Humans have been searching, mining and using gemstones for nearly 6000 år. For eksempel, the famous Chinese "Hetian jade" has been discovered as early as the primitive society. I følge ufullstendig statistikk, det er flere enn 600 kinds of gem mines discovered and mined in the world, and these gem resources are mainly distributed in [...]
Among the five continents, Asia is not the continent with the most gem varieties and production. The other four continents have their own strengths. 2. Africa The African continent is extremely rich in gem production and is known as the richest gem warehouse on earth. The main gems are diamonds, smaragder, tanzanitter, gylne smaragder, rubiner, [...]
The strength of dispersion of different gemstones is different. It is usually expressed by the difference between the refractive index measured by red light at 686.7nm and purple light (460.8nm 1), and is called dispersion value. Generelt, the dispersion value greater than 0.03 is called strong dispersion. Colorless or light-colored gems with strong dispersion can [...]
1. Helps identify gem species There are special inclusions in some gems, and the types of gems can be determined by studying these inclusions. For eksempel, rubies often contain needle-shaped rutile particles, and they intersect at 60 angles. This is determined by the symmetry of the ruby itself. Derfor, it is a unique inclusion of [...]