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About quality

color stone reference table

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Quality

F: A quality that makes it difficult to see inclusions with a 10x magnifying glass.

VS: Quality that makes it difficult to see the inclusions with the naked eye.

SI: Quality that can be seen with the naked eye * Including fine chips and scratches that are difficult to see with the naked eye and lack of fabric

hue

S: A top-class color for the gem type or a rare color that does not exist in large numbers

A: A quality color that falls within the beautiful or wonderful class of the gem type

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jewelclimbplus

Hyalite Opal (Glass Opal) Gemstone Loose 0.92 CT

Name: Hyalite Opal (Glass Opal) Gemstone Loose 0.92 CT
Brand: jewelclimbplus
SKU: 1055559
Price: 5271.0 HKD
Availability: InStock

◆◆◆◆For non-Japanese buyer◆◆◆ [With loose certificate] If there is a statement like the above, the product has been inspected in Japan. be attached.

HK$5,271.00

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[Loose stone identification certificate included]
Very high quality and rare opal!
Hyalite Opal (Glass Opal) 0.92CT

RECOMMEND POINT
This is a very rare collector's stone.

Hyalite opal is derived from the Greek word hualos, which means glass.

Because of its glass-like appearance, it is commonly known as glass opal and is one of the most difficult opal species to produce.

As it is called glass opal, it is characterized by unique bubble-like and rhytidic inclusions.

It has an appearance of a collection of small, transparent, granular to grape-like nodules, and in most cases, hyalite opal is left in its rough state.

The reason for this is the large amount of loss that occurs when cutting.
When a stone is faceted for use as a gemstone, 60-80% of the original rough stone is removed.

It is the rarest of all opals and is therefore a popular collection stone.

In particular, Hyalite, which emits a neon green color when exposed to ultraviolet light (black light), has received high praise.

It contains trace amounts of uranyl, an element that is a residue of uranium, and fluoresces when exposed to ultraviolet light.

By the way, you may be reluctant to hear the word uranium, but please rest assured that it has no effect on the human body.

Of course, not all hyalite is fluorescent, but it is a natural product that occurs by chance that gives it its mysterious appearance.

Rare fluorescent hyalite opal.
This is a highly recommended stone for your collection.

◇Gemstone: Hyalite (glass opal) ◇Weight 0.92 CT ◇Shape Step ◇Dimensions: 5.46 x 6.94 x 4.18 mm ◇Origin: Mexico ◇Hardness 5.5-6.5 ◇Quality SI ◇Hue S ◇Notes: Loose identification certificate included