How to distinguish topaz, yellow jadeite, yellow agate

Topaz, also known as citrine, is a fluorine-containing aluminosilicate mineral, which is formed by the vapor discharged from the igneous rock during the crystallization process, and is generally produced in the pores of rhyolite and granite. Since it is often associated with tin ore, it can be used as a marker for finding tin ore. Topaz is generally columnar or irregular granular or lumpy, and the colors are varied, generally yellow, blue, green, red, brown and other light colors, with vitreous luster, and some are colorless and transparent.

The color of topaz fades when exposed to sunlight for a long time. Topaz can be used as an abrasive material and can also be used as an instrument bearing. Transparent and beautiful topaz is a precious gemstone.

Yellow to brownish yellow jadeite. Yellow and brownish yellow are the colors of the secondary mineral limonite, and their color, shape and texture changes are similar to those of red fei (see "red jade" bar). Yellow can also be superimposed on red or maroon, especially on the skin of the jadeite rough, and the hue change from flesh (no secondary changes) to yellow mist and red mist can be seen in turn, reflecting the weathering process of the jadeite rough.

Yellow Fei is located on top of the red Fei, closer to the epidermis, and is mainly formed by limonite impregnation.

Yellow fog"。Most of them are cloudy and impure, often brownish, not yang enough and not transparent enough. Yellow jadeite is usually heated to form a deep red or bright red hue. Natural and high-quality Huang Fei is also called.

Golden jadeite"It is orange or honey color, crystal clear, fresh and uniform in color, and belongs to the top grade of Huang Fei, which is relatively rare. Yellow jadeite bracelets are a new force in the middle and high-end jadeite jewelry in the big family of jadeite jewelry. Huang Fei.

However, if consumers see a yellow jadeite bracelet in the market that is both bright and transparent, they need to carefully identify whether it is artificially processed, because the pure natural yellow jadeite is valuable even within the jewelry industry.

Yellow Agate It is recorded that because the shape of the agate rough stone is similar to that of a horse's brain, it is called "agate". Both in the Old Testament and in the Buddhist scriptures, there are records of agate. In the East, it is one of the seven treasures and seven treasures.

Agate is known as a gemstone or as a craft because of its rich color and beauty.

The quality of jadeite is heavy! Agate looks more translucent! Like glass!

I don't know what kind of topaz you mean! Ten dollars a piece on the street, you think it will be a real topaz.

Is it? True topaz is less contacted, so it's not good to give you advice!

1. The difference in mineral composition. Yellow Fei Yuan Fengcui belongs to a kind of Fei Nian Ling Cui, with the characteristics of jadeite, the main mineral component of Huang Fei is jadeite, and its texture is relatively loose, there is no good transparency, so it looks a little impure.

2. The color of topaz should be a primary color, mainly trivalent iron. In terms of yield, it is a relatively small variety in Hetian Yuli, and generally large pieces of material are rare, most of the color is green, greenish-yellow, and the yellow material with a very positive color is rare.

3. Generally speaking, yellow jadeite is mainly two colors, one is mainly yellow, but with jadeite color; The other is the main color of Fei with yellow. Topaz, however, does not possess such properties, although its color is more abundant.

If you look closely, the edges of the fake yellow jadeite are digging and excavating to show a faint blue-purple light; This is the color of the reflected light of the filled organic gum.

The yellow jadeite pendant subjectively judges the authenticity of the pendant, and the daily operation is: light transmission, look at the emerald characteristics of the crystal structure inside (Hetian jade is to see the characteristics of the tremolite cloud flocculent structure), and see the acid corrosion texture of the jade body that is not eroded by strong acid. After pickling, the jadeite is generally dull and not clear.

The identification method of yellow jadeite is jadeite. Emerald is also called "fly legs", which refers to the crystal direction of jadeite that can show blocky, fibrous or star-spotted shine under sunlight. The gloss of yellow jadeite identification method.

Then such Huang Fei judged that the jade jewelry must be fake. Secondly, look at the display of natural color, the natural yellow jadeite color often presents irregular spots of different shades, gradually becoming lighter from the surface to the inside, if we observe a yellow jade when its color has no natural sense of hierarchy and color transition, we need to be vigilant.