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The DIFFERENCE BETWEEN OPal and IMITATION and SYNTHETIC OPal How to distinguish OPal from imitation and synthetic Opal

The difference between Opal and imitation and synthetic opal How to distinguish Opal from imitation, synthetic opal and imitation, synthetic opal Synthetic opal, according to the composition of natural opal structure, synthetic opal spheroids, and can show the color, luster and color of natural opal.

There are three differences between synthetic opal and natural Opal: 1. The color of natural Opal is spindle-like, with the middle thick and thin sides, while the color of synthetic Opal is triangular and expands in three directions.

2. The synthetic Opal colored pieces have a hexagonal honeycomb structure, and the colored pieces form Mosaic patterns, which show the lizard skin reticular structure.

3. Synthetic Opal has large pores and strong water absorption.

Opal stone treatment generally has two main purposes, namely: (1) to change the color into a color;

(2) Change the body color to improve the contrast of color change.

How to distinguish Opal from imitation Opal Synthetic Opal There is also an Opal made entirely of plastic imitation on the market.

The appearance is very similar to transparent to translucent Opal, it is difficult to distinguish with the naked eye.

However, it has a much lower relative density (1.20), a much lower hardness (2.5) and a relatively higher refractive index (1.48-1.53).

The internal pattern of opal (opal) changes naturally, the internal texture of synthetic opal and patchwork Opal is not natural, and the color of imitation Opal is stiff.

In ADDITION TO THE TREATED OPals described ABOVE, THERE ARE synthetic OPALS and IMITATION OPALS AVAILABLE ON the MARKET.

Synthetic Opal was first introduced by Gilson in 1974.

In appearance, it is very similar to natural opal, and can also have a good color.

But the most distinctive feature of this opal is its honeycomb-like or so-called snakelike structure, especially synthetic black Opal.

In addition, it also has the characteristics of small hardness (about 5.5, natural opal is 5.5-6.5), relative density value is low (generally 2.00¡À0.03, natural Opal is 2.15) and so on, which can be identified.

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