Since the "tàu 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 [...]
Thể loại Lưu trữ: Tin tức trang sức
Olivine is a magnesium-iron silicate mineral, belonging to the orthorhombic crystal system. chiết suất là 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, tốc độ phân tán là 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. So với kim cương, các [...]
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, với một chỉ số khúc xạ của 1.518-1.526, sự chênh lệch lưỡng chiết của 0.005, Một [...]
Canxit là khoáng vật cacbonat chứa canxi. Nó là một khoáng chất rất quan trọng trong vỏ trái đất. Nó thường được sử dụng làm tài liệu giảng dạy để giải thích các đặc tính của đá quý, nhưng nó hiếm khi được sử dụng làm đồ trang sức vì nó có độ chênh lệch khúc xạ rất cao và là giải pháp hoàn hảo. Lý do, 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 năm. Ví dụ, the famous Chinese "ngọc Hetian" has been discovered as early as the primitive society. Theo số liệu thống kê chưa đầy đủ, there are more than 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, Ngọc lục bảo, Tanzanites, Ngọc lục bảo vàng, hồng ngọc, [...]
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 (460.8bước sóng 1), and is called dispersion value. Nói chung là, 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. Ví dụ, rubies often contain needle-shaped rutile particles, and they intersect at 60 góc độ. This is determined by the symmetry of the ruby itself. Vì thế, it is a unique inclusion of [...]