jade
Jade I believe We are all very familiar with it, However, the knowledge of jadeite probably know the specific impact of the small.Today, let us know the facts in brief.
The latter half of the 19th century, the French mineralogist Moore divided China's "Jade" into two types of nephrite and jadeite.Jadeite, China commonly known as "Jade", is a rising star in China's traditional jade, but also in modern times in the top grade of all jade.Whether the Jade is "Mountain material" (the original ore) or the "seed material" (secondary minerals), the jadeite mineral composition is consisting of dense block .
Seen under a microscope, The composition of the jade jewelry minerals are closely intertwined ,the components to form the fibrous structure of Jade.This tight fibrous structure made the jade has the characteristic of Delicate and tough.Jadeite is caused by a steel and aluminum silicate mineral composition, color is colorless or white.Its chemical composition as follows: silicon dioxide accounted for 58.28%, accounting for 13.94% of sodium oxide, accounting for 1.62% of calcium oxide, magnesium oxide accounts for O.91%, ferric oxide accounts for O.64%,In addition,it also contains trace amounts of chromium and nickel. Among them, chromium is major factor which make the emerald has green color.Jade usually containing chromium oxide O.2 ~ O.5%, the individual up to 2 ~ 3.75% or more.
usually,the color of the jadeite are white, gray, pink, light brown, green, olivine, purple and so on, most of them are opaque, individual are translucent, all of them has vitreous luster.
According the color and texture to divide jadeite, there are emerald green, Brilliant Green, glass, green, parrot green, spinach green, and shallow green, frog green, guapi green, plum green, blue and green, gray-green, glossy dark green, and violet, and other species.
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