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how to make .925 gümüş .999 Baolong talks about natural aquamarine

’' te gönderildi Kingjy tarafından

Brezilya: The deposits are distributed in all regions of the country.

Ural region of Russia: produces high-quality aquamarine.

Diğerleri: Mozambigue in Africa, Queensland in Australia, Burma, Çin, Hindistan, Kenya, Madagaskar, Namibia, Nigeria , Zambia (Zambia), Srilanka (Srilanka), Tanzania (Tanzania) and the United States (U.S.A.) and other places also produce.

The best method for identification: Natural aquamarine can be judged based on the following aspects: refractive index; birefringence index; microscopic magnifying glass; Optik Özellikler; relative density; spectrum; pleochroism; fluorescence effect.

Other gemstones that are easy to be confused with natural aquamarine: Other gemstones that are easy to be confused with natural aquamarine include sapphire, kyanite, topaz, turmalin, and zircon. In addition to the above kinds of gems, man-made glass is also easy to be mistaken for natural aquamarine.

1. The method of distinguishing aquamarine and topaz The natural sky blue topaz produced in Brazil and the sky blue topaz after artificial color change are transparent in appearance and clean inside the crystal, so it is easy to be confused with natural aquamarine. The identification method is to use Charles filter, the aquamarine will appear obvious green under strong sunlight.

2. The method of distinguishing aquamarine and sky blue sapphire A kind of sky blue sapphire produced in Sri Lanka, the appearance is very similar to natural aquamarine. Fakat, this sky blue sapphire crystal has many milky white, silky rutile inclusions inside. Ek olarak, its clarity is worse than aquamarine.

In the second half of the 20th century, Russia has developed synthetic aquamarine, which uses both the flux method and the hydrothermal method, instead of adding a trace of chromium and adding a trace of divalent iron. Fakat, due to the high manufacturing cost and the large output of natural aquamarine, the production was not continued due to unprofitable production.

 

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