Spinel
Spinel is confusing because it is rich in color and similar to many gemstones. However, it is not difficult to distinguish them by conventional methods such as polarizing mirrors, spectroscopes, and magnification observations, as well as refractive index and density. The common variety of spinels is red, paying attention to the distinction between rubies and red garnets, especially magnesium garnet.
2. Shaflai Stone
Shaflai Stone is a semi-precious stone, and now it is one of Tiffany's main push jewels. The scarcity of production is the reason why it has become the new favorite of gems. In addition, its "three highs" is also very important. The first is high brightness, which stems from its inherently high refractive index, which is a strong fire from time to time; the famous high purity makes it the emerald emerald of the emerald family far behind, with very little impurities. A reiki; high-saturated rich color is another weapon of saffron.
3. Purple spodumene
Although the purple spodumene has a proud color, but behind the eye-catching aura there are also delicate drawbacks. The color of spodumene is unstable. If it is exposed to ultraviolet light for a long time or is strongly heated, it will cause it to fade. Secondly, spodumene is easily broken by cleavage by external force and is very fragile. Therefore, the delicate purple spodumene needs careful care of the owner.
4. Moonstone
Moonstone emits pink fluorescence under short-wave UV radiation, while there is no or only weak fluorescence under long-wave UV. There is blue or violet blue fluorescence under x-rays. There are many gemstones that have a moonlight effect in nature, but they can only be called moonstones when the feldspar minerals have this effect. Other gemstones cannot use the moonstone name even if they have a moonlight effect.
5. Topaz
The highest value topaz is red and Sydney, followed by brown. The yellow topaz is similar in appearance to the cheap yellow crystal, so the price is not high. Colorless topaz has the lowest value. In addition, the current topaz on the market is divided into natural topaz and optimized color-changing topaz. It is rare in the large-scale topaz market without natural color change, and the optimized color-changing topaz is optimized in the process. No other substances were added, so it was still recognized as a natural gem in the identification of jewelry.
6. Conch beads
Another characteristic of Conch Beads is that it is difficult to be copied because it has a special identity - flame pattern. This kind of light flame is not only clear from the outside, but it is sometimes delicate and soft, sometimes enthusiastic and unrestrained, and it is extremely noble. The most typical conch pearls have a large frequency band in color, and the color of the band width has always been from light rose to bright pink, sometimes even from grayish green to brown, but now there are also white conch. Pearls exist. Rose-colored conch beads are the most valuable and rare species.
7. Morgan Stone
From different angles, it can be found that the Morgan stone presents two delicate subtle colors: light pink and dark pink with blue. Due to the scarcity of production and the beauty of the color, this unique magenta gemstone is of high value and the price of the premium is above the ordinary quality emerald. The morganite can also change color by heat treatment, green blue turns blue, light blue turns into deep sky blue, yellow green turns blue, orange yellow turns pink and so on.
8. Opal Stone
Among the Opal species, Deborah Opal and Trimble Opal are relatively cheap and have been made into many accessories. But a lot of instructions about opal will make your concept a bit confusing. Most of what they say about opal is mostly for the original opal, not Deborah Opal and Trimble. Only Deborah Opal and Trimble Opal need to avoid water penetration and the original Opal does not. Deborah Opal and Trimble Opal can be cleaned with a soft cloth and a neutral wash, but do not immerse in water. In addition, any opal should avoid bleaching, chemicals and ultrasonic cleaning.
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