What is a cat’s eye gem What is the light characteristic of a cat’s eye gem

 Cat’s eye gem, also known as cat’s eye, cat eye, cat essence.

Also called Oriental cat’s eye or Ceylon cat’s eye.

There are also called gold green jade or wave stone.

It is the chrysoberyl of minerals.

The main composition is BeAI2O4, oblique crystal system, hardness 8.5, specific gravity 3.5-3.7, refractive index 1.74-1.76, transparent, translucent or opaque.

There are various colors of yellow, such as Kwai yellow, wine yellow, yellow green, yellow brown, gray yellow, brown yellow, brown, brown black, gray green and gray, and so on, with bright color Kwai yellow for the best.

Cat’s eye gem is one of the rare and precious kinds of jewelry. The most touching part of cat’s eye gem is that when the gem is set in the sun, it reflects a dazzling living light from the inside of the gem, and its shape is very similar to the cat’s eye.

Especially WHEN THE strength of the light changes SOMEWHAT, the light OF cat’s eye gem also along with the strength of the light or fine or coarse, when slightly shaking the gem, that flickering light also flexible change, just like that flexible and bright cat’s eye fine, called “cat’s eye” can be said to be the most appropriate.

Why does the cat’s eye gem reflect a strong and flashing light?

This is inseparable from the internal structure characteristics of the cat’s eye gem.

In the interior of the cat’s eye stone, innumerable extremely tiny fibrous structure lined up parallel to the regular, and has the characteristics of reflection, when the light in the direction perpendicular to the orientation of fiber, every tiny fibers have a spot, countless dots connect is formed a band, combined with the gem shape of curve,

This dazzling band of light becomes clearer and brighter, and when the stone is shaken, the light naturally (and only) moves in the direction of the parallel structure.

Because THE QUALITY AND price OF cat’s EYE GEMSTONE are determined by color, light, weight and perfection, all aspects of the characteristics of cat’s eye gemstone should be understood, and the characteristics of its light should be a profound understanding.

General cat’s eye gem light characteristics are :1. When there are defects in the parallel structure of the cat’s eye gem, there will be defects in the light of the gem.

If it is a parallel structure with different density and uneven continuous, the light will be discontinuous and occur “broken leg” phenomenon.

If the internal structure is not parallel, the performance can produce bending on the light is not straight.

2. Any cat eye gemstone, as long as it is parallel to the internal structure of the gemstone, can take out the cat eye light in any direction of 360 degrees.

But in the direction of the two symmetry planes perpendicular to the internal structure, the cat’s eye light can not be removed.

3. The radian of the gemstone surface has a certain relationship with the light of the cat’s eye gemstone in general, when the radian of the gemstone is closer to the plane, the light of the gemstone will be.

Thickened or unclear, at least not as narrow and clear as the light on the surface of a gemstone with a large curvature.

4 cat’s eye gem transparency, and cat’s eye gemstone light clarity and brightness has a direct relationship, the general rule is the cat’s eye gemstone transparency is higher, the light is not clear, brightness is weakened, the best light effect is a deep and unpredictable translucent state.

5. The density and thickness of the internal structure of cat’s eye stone have an impact on the light of the stone. When the fiber structure is thick and sulfur, the light will be mixed and coarse, and when the structure is thin and dense, the light of the stone will be bright and clear.

6. The bottom of cat’s eye stones is not polished to reduce light penetration and loss, and increase light reflection, which is also beneficial for the increase of color.

At PRESENT, THE world’s famous cat eye production area for Sri Lanka, cat eye gem production in the southwest of the island Trana Bla and Goyle and other places, for crystalline and gravel with some other gemstones output, so also often called the cat eye gemstone “Ceylon cat eye”.