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gold plated jewelry websites Identification and Origin of Golden Emerald

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The differences between golden emeralds and natural similar gems are as follows:

(1) Yellow sapphire. The refractive index of yellow sapphire is higher than that of gold emerald; it is more common for sapphire to appear in the three directions of hexagonal ribbon and filamentous inclusion at the angle of 120 degrees. .

(2) Calcite. There is no back-edge facet ghost in the mayonnaise; no pleochroism.

(3) Quartz cat’s eye. Two gems of the same size, the quartz cat’s eye is obviously lighter than the cat’s eye; the structure of the quartz cat’s eye is thicker, under normal circumstances the width of the eyeliner is larger, and the clarity of the eyeliner is lower; the background color of the quartz cat’s eye is mostly gray and dark gray, which is difficult to achieve The honey yellow color of opals.

Due to the scarcity of alexandrite, synthetic corundum mimics and synthetic spinel mimics are common on the market. Synthetic corundum imitation alexandrite is blue-gray in daylight and purple-red in light. It is distinguished from alexandrite with a refractive index of 1.762-1.770 and a relative density of 3.09-4. 01, and bubbles and curved growth zones are common ( Flame melting method); synthetic spiced imitated alexandrite, although it has a color change, it is homogeneous and has a refractive index value of 1.727, which can be distinguished from alexandrite.

Origin of Golden Emerald:

Sri Lanka’s cat’s eye gemstone is more famous, and its opal and alexandrite are produced in placers. Sri Lanka is also the only source of alexandrite cat’s eye.

The famous origin of high-quality alexandrite is the Ural Mountains of Russia, with small crystals. The Sri Lankan alexandrite crystal is slightly larger, but the quality is slightly inferior to the Ural alexandrite.

Various varieties of golden emeralds have been discovered in Brazil: including transparent yellow and brown golden emeralds, good cat eyes and high-quality alexandrite.

Madagaskar, Hindistan, and China also produce golden emeralds.

 

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Başlayalım : mo@kingjy.com

 

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