The depth of color emerald cuff links

Often the color into the green line, red, yellow and purple series, also attributed to the emerald green ink series. Electron microprobe analysis showed that the modern, the green emerald mens cufflinks has a direct relationship with the Cr3 +, Cr3 + have there, a pure green there, Cr3 + determines the existence of the type of green jade cufflinks. Dark green, emerald green, green, sun green, from the look of Cr3 + content: in order of decreasing from high to low. Jewelry class emerald cufflinks Cr3 + concentration is generally less than 1%, close to or exceed this value by the color becomes dark green. Just like he ever-changing jewelry of women, it is hard to say there is a fixed and clear rule of the cufflinks. If Cr3 + content of 3-4%, then a dark green; if more than 12.6%, then become a sodium chromium pyroxene.
Mg, Ca element is the emerald cufflinks in one very important element, Mg, Ca and causes the color of emerald cufflinks have a close relationship between the different levels of Mg, Ca elements to reconcile with the depth of color emerald cufflinks, from dark green to light green to colorless, Mg, Ca element content in the reduction. Cr elements are present decision emerald cufflinks color varieties, and Mg, Ca content directly affects the depth of color emerald cuff links and run through the situation. In addition to personal preference, you need to pay attention to the overall dress and occasion to match up to the cufflinks. Of Fe is an element associated with the green, often with shades of gray or blue color, emerald cufflinks of transparency becomes low. Analysis of test data that is mainly caused by the Fe2 +. Yellow-green, often superimposed by limonite among the green of the Cr3 + caused.
In summary, the main green jadeite and Fe2O3, Cr2O3, FeO, but it also affected by CaO, MgO effect, in which the higher Cr2O3 content, the more the color green jadeite, including Fe2O3 more, the more blue the color of jadeite. Definition of black jade cufflinks there are two views. One is that the chemical composition of black cufflinks and the emerald green pyroxene in line also contained traces of strontium, chromium, manganese, etc., and is different from jadeite. In business has been considered a variety of jade cufflinks. Besides, you should select cufflinks based on individual characteristics of the appearance and bearing.  Another is considered to be black jade jade cufflinks, through microscopic magnification observation, jadeite mineral distribution of a large number of filaments between the black material, black jade cufflinks that differ from the first, the color is the late time raw form, not the native black jade cufflinks.
Chemical analysis showed that, Green-hui Yu Shi composed mainly by omphacite. Yu Shi of omphacite microprobe analysis showed that: chemical composition and the more pure jadeite mineral analysis results exist only minor differences. For omphacite can basically be divided into three types: Na-rich omphacite, omphacite and calcium-rich chromium-rich omphacite. Na-rich omphacite usually contain very little Fe, showed a lighter color, and calcium-rich omphacite which have higher Fe, showed a darker color. For the cufflinks, it is generally agreed that it originated in the West. From the red Fei, Huang Fei-like production point of view, they all appear in the oxide at the near emerald cufflinks, red Fei is not the color of minerals from the color, the mineral particles of iron was its external color, and a higher Fe content, therefore they should be the hematite (red) and the main was gel-like limonite nH2O yellow, brown)-induced color.