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China new varieties of precious stones

Today there are many jewelry industry, new varieties of gemstone, precious stones and China for the development of processing methods to improve quickly, this article is the latest jewelry in the identification and detection of data to enter
Green copper-zinc-carbon pendant
Stone built in a yellow metal, and is equipped with moonstone blue-green. A very attractive central stone main is a globular structure in the form of grapes from the look of malachite as translucent to opaque fiber structure, this mineral is a typical bright blue-green color of copper caused the result. Refractive index 1.63 to 1.75 in the sample, and the difference in refractive index with a refractometer carbonates blink response to this jewel on the back test with diluted hydrochloric acid bubbles, can prove that These carbonate rocks. When the stones were embedded and transparent, so conventional Gemological testing is limited, then the issue of testing to determine the identification of wholesale gemstones. X-ray fluorescence spectroscopy showed that the stones of the main composition of zinc and copper. It contains a small amount of lead elements. Spectra showed the chemical composition in the green copper-zinc and zinc-carbon fructus, copper as the jewel of the area is very high, so the carbon support of the stones for copper-zinc green (Aurichalcite).
can see the green zinc-carbon is used in jewelry, soft green, zinc-carbon (Mohs hardness of 1-2 degrees), crunchy, who repairs jewelry to see traces of a round face in the convex stones observed at the top may be pulling a small stick, to the scene to the left.
Faux emerald diagenetic Poly Mica
In India there is a green jewel on the convex side round emerald sales. But the appearance is very different magnifying observation and to see the grain structure Emerald Flake, and this material is composed of many minerals, various shades of green to be seen. This round face convex, the ratio of 2.89 as a jewel, for poly crystalline structure, proportion and not as the primary basis for identification, to study China's technology gems wholesale. The stones in the selected five points for the test using Raman spectroscopy shows the results indicate that the material produced varies and green, muscovite, causes spectroscopy green, then studied the X-ray fluorescence, and finally shown together a lot of silicon, aluminum, potassium and small amounts of calcium, strontium, iron and chromium. Green Mica is due to the presence of chromium, coral jewelry wholesale, so it must belong to the type of mica mineral chromium.
This formed mineral diagenesis in different directions, along with the colorful, with a solid crystal, so that the appearance of different shades of green. Convex play a round face orange with rare gems and white lines with Raman spectroscopy the latter. You are rutile and dolomite. Observed at the bottom of the outer ring has a green circle saturated. This phenomenon is likely to Joban oil green light by the infrared spectrum of tests to determine the slope of this jewel of oil after treatment.
Synthesis of rare ruby
Laboratory showed three unusual weight spinel were 3.21 ct, 4.49 ct and 7.61 ct. Extension of observation with river views along the gap, but also to see the needle-shaped inclusions show a linear distribution of point of analysis X-ray fluorescence showed that a weighting of 0.54% -0.92 % Cr2O3, 0.06% - 0.11% and contains 0.01% -0.03% Te2O3 the Ga2O3, titanium and vanadium is low, because no detectable. It also contains 0.02% -0.03% zirconium oxide ZrO 2, while the zirconium and inclusions are not related, and gemstone supplier, and no other heavy metals such as aluminum or tungsten.
Waste stream internal growth and the concentration of trace elements in weight percent. We can learn this jewelry is the flow of spinel China. However, the general properties of these synthetic spinel ruby rare in general different. Was generated and Kashan synthetic ruby is equally oblique dotted lines show the distribution of the inclusions (commonly known as "like rain" inclusions) and any commercial production of spinel and zirconium dioxide not in the natural ruby from time to time containing zirconium but has always been associated with zircon crystals in combination, and this batch of stones contain calcium, iron, titanium and vanadium, which at this point not in the flow of spinel in very unusual, normally Chatham, Douro Ramaura or synthetic Rubin Central Standing Committee of lead or tungsten for such heavy metals, synthetic gemstones lots to do, not found.
Although now it is unclear whether these new varieties of pearl synthetic spinel, but these unusual spinel or intended or hand lens under a microscope for the presence of the river, whether it is synthetic stones, chemical analysis and discovery of other Zr trace elements in determining the existence of the state on the distribution of natural and synthetic identity.
Diamond Sapphire diffusion treatment
Since 1880, Sapphire technology diffusion treatment was open, the field identification is a common cause in the blue stones from the surface of Titan, as well as cobalt, titanium instead of experiencing treatment component of dissemination. This presents a blue stone moves, the spread of technology to cope with the thin blue. 60 times under microscope is difficult to see, and therefore I have not seen these products in the marketplace.
Not long ago, two or ct blue sapphire weighing 2.74 carats was 2.23 and GIA gem identification center, 2.74 ct Sapphire has sent the following characteristics: the color in the two groups of iodide were found on the surface of the stone back in the Po, the uneven color, which is a massive proliferation of treatment by the Sapphire, which limits other serious sapphire 2.34 ct the first to the more profound, more alive , the index of refraction of ultra-speed under the table, the elements of the separator typically by drilling three broad absorption bands generated, amplification has not been seen any inclusions, but are near the surface are many small places where the distribution of the ridge some facets paler.
Because of the stones to pull much higher rate than expected, therefore, micro-Raman spectroscopy, found that a large number of precious surface concentration of cobalt. China obviously caused provider gemstone jewelry beads itself, the high refractive index of cobalt. This treatment is especially vulnerable to thermal diffusion in the red corundum. In addition, due to impurities on the surface of cobalt blue and green Topaz was also very common that Topaz has always been suspected of proliferation after treatment, but can not determine whether the extent of treatment.
Like Topaz, 2.23 ct weight surface Fengyun sapphire blue area shown is almost invisible, which is thin to very small gaps or minor scratches can not confirm within colorless stones exposed area This piece of jewelry, whether it was treated with cobalt, or only one type of reaction with the surface.

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