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Gems and this kind of thing can not see much with your few **, and now the fakes really can't see the difference if you look at it alone**, and the following gives you some information about aquamarine, and you can test it yourself. If you are not feeling confident, it is recommended that you go to the appraisal center. The identification of counterfeit and shoddy products is used to imitate aquamarine, and the materials with similar colors mainly include:
Glass, topaz, synthetic spinel, zircon, maxixe-irradiated aquamarine. Glass is isotropic and is usually black at any position under orthogonal polarization, but sometimes produces abnormal birefringence due to stress. The refractive index is usually between 1 50 and 1 70, singly refractive, and can be distinguished from aquamarine by accurately measuring the refractive index value.
If you zoom in, you can also see bubbles and swirls inside. Topaz has a high refractive index of 1 619-1 627 and a specific gravity of 3 53, as well as a pronounced cleavage that makes it easy to distinguish from aquamarine. Synthetic spinel shows a striated extinction with a refractive index of 1 728 and a specific gravity of 3 64 under orthogonal polarization.
Most blue spinels show the absorption spectrum of cobalt, which is red when viewed under the Charles color filter. Zircon has a adamantine luster, shows a rare earth absorption spectrum, and the ghosting of the visible edges is observed from the proper orientation. Maxixe-type irradiated aquamarines can be identified by the normal-blue absorption spectrum, with two bands in the red zone and weaker bands in the orange, yellow, and yellow-green zones.
When the irradiated color is exposed to light, the color fades within a few days. Quality requirements and technical standardsThe technical standards for the identification of aquamarine are as follows: Color:
Light blue luster: glass luster cleavage: a set of incomplete cleavage Mohs hardness:
7-8 Density: 2 72 (+0 18, -0 05) g cm3 Phototic characteristics: heterogeneous, one-axis crystal, negative photopolychromacy:
Weak to medium, blue and blue-green or different shades of blue refractive index: 1 577-1 583 (+0 017) Birefringence index: 0 005-0 009 UV fluorescence:
Non-absorption spectrum: 537nm and 456nm weak absorption lines, 427nm strong absorption lines, magnified and enlarged according to the darkening color: gas and liquid two-phase inclusions, three-phase inclusions, typical slender parallel tubular inclusions Special optical effects:
Cat's eye effect.
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It looks like it's not fake, this ** won't marry you It's quite transparent, it's not bad, it's expensive, but it's also worth it, Aquamarine is originally cracked and impermeable, you're like this, it's already good, but what's the matter with the first one? It's good, 14 is already big, not bad, the key is that you like it, it's worth it, true or not, the chroma of aquamarine is like this, I think it's true.
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There are three types of sea sapphire blue: green blue, sky blue, and ocean blue, and your bracelet belongs to sea sapphire blue in terms of texture.
The benefits of Sapphire Blue are numerous. Aquamarine's five elements belong to water, which is most suitable for people who love water.
The energy of Aquamarine corresponds to the throat chakra of the seven chakras of the human body, which can help individuals with their ability to express themselves, language skills, comprehension, laryngeal health and balance the operation of the lymphatic system. Especially suitable for teachers and salesmen. When you are writing without inspiration and can't hold back your essay, you can touch your forehead with aquamarine, or gently scrape the back of your head and neck, which can help purify your brain energy and restore your thinking.
And aquamarine is the lucky stone for birthdays in March of the solar calendar.
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It may be blue chalcedony, which looks very thorough, if you are very expensive to buy it, it may not be cost-effective, and you can go to a jewelry store to have a look.
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Look, its texture should be!
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You can see it just by looking at the picture???
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It is a natural aquamarine necklace. The color of the necklace is lighter and the color is average. Although the pendant is lighter in color but relatively more transparent and less cotton, the color is better, as far as ** point of view, this aquamarine pendant carving is good, the crystal is larger, the valuation of a single pendant should be between 2500-4000, the necklace part is estimated between 700-1100, and the whole chain should be conservatively estimated between 4000-5500.
The market price of 7300 is a bit expensive, but China does not have a high-quality aquamarine, the current aquamarine on the market is mainly imported, a good aquamarine is still worth collecting.
Natural gemstones similar to aquamarine are blue topaz and color-altered zircon, and synthetic aquamarines have blue spinel and artificial glass. The best way to distinguish it from topaz and zircon is the density: topaz grams cubic centimeters, zircon grams cubic centimeters, the density is obviously large, and the hands have a sense of heaviness.
Under a magnifying glass, zircon and topaz can show double shadows at the edges and corners of the bottom facet, and aquamarine is not very clear. Zircon has high dispersion. Artificial glass and artificial blue spinel are similar in color, but they are both homogeneous and have no dichroism, which is what distinguishes them.
Inclusions: Natural aquamarine, most of which are cracked. Most natural aquamarine has a lighter blue color, while topaz has relatively few impurities and more than one color.
If the color is very dark and not expensive, it is basically impossible to be an aquamarine. Most of the aquamarine market is light in color, almost colorless, and the ** of high quality is very high.
Most aquamarines have a light blue tinge tinge with a green tinge, and the color is like the shallow sea of a resort site, which is fresh and pleasant. The color is sky blue to sea blue or greenish blue, with a bright and flawless, intense vivid blue to light blue is the best.
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Aquamarine belongs to low-grade crystal jewelry, beryl structure, not very valuable. You look so many cracked moire, and you should be made of natural crystal, but it is not ruled out that it is made of artificial glass. Generally, there will be some impurities in the crystal cracked, which is not so uniform, you have to take a closer look.
Such is a normal quality beryl aquamarine.
This is a better pure aquamarine, ** around 200-300 yuan, a little flawed about 100. But the quality is already a little better than what you pictured.
This is basically reprocessed, similar to glass jewelry.
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