Hello everyone! I am a Burmese Chinese Daisen. The color of black sand jadeite rough and other shells is different, its black shell is opaque, and black sand rough is mainly produced in the third layer of the old field area, the Houjiang field area and the small field area. As far as the field mouth is concerned, the rough black sand at the mouth of mowanji field, moxi sand field mouth, Nanqi field mouth, lao Pakang field mouth and other field mouths are more popular in the market.
Mo Wanji is a field mouth that people love and fear, and the quality of the pigment it opens is unmatched by most field mouths, but it is also accompanied by high gambling. Moxi sand is known as the mouth of the fairy field, and is known for its easy production of water materials, which is what we often call ice or glass blocks. The pigment of Nanqi also attracts many Cuiyou. The black sand of the old Pakang, the bottom is transparent, the green is pure, the black is like lacquer, where there are pine flowers, python belts, and white mist, there must be a good color at the bottom, and it has been famous for planting well, the bottom is good, and the color is good for a long time.
The shell of black sand can be roughly divided into wax shell skin, turn sand skin, water skin, oil skin. Most of the wax shells are finely cracked and multi-lobed, and they are not easy to dissolve. Recommendation: first open the wax block, and then set according to the observed situation, do not blindly cut. The tightness of the sand skin in the turned sand skin mostly determines the quality of the planting water, and the best can reach ice. But pay attention to cotton, cotton will also affect the value of jadeite. The black sand of the water skin is large and old, and the flesh is delicate, and if the water head has a clean bottom, it is above the glutinous ice. Oil skin is the best of the black sand water material, similar to the water skin, the oil skin rough is above the glutinous ice.
The gambling nature of the black sand material is very large, for the black sand industry commonly used words "a knife heaven, a knife hell", "a knife poor, a knife rich" to describe, Burmese people are described as this kind of stone solution or defeat of the family business, or rich side two extremes.
There is another point that people should pay attention to in the black sand gambling stone, that is, its counterfeit unsweed stone. Uncharined stone is an aluminum-containing silicate, hardness of 5, specific gravity is 2.4, the black skin shell on the block has no sand hair, no wax shell, and it is very similar to the black sand of Mowanji in terms of appearance alone. In the early 1980s, many Taiwanese friends often bought unsweed stone as black sand, causing heavy losses.
How to distinguish the difference between unsweed stone and black sand? The biggest feature of weijiang stone is that the skin and flesh are not divided, there is no wax shell, and the surface of the stone does not turn sand. Although its pine flowers are more and fresher, the color and taste are high, but they are chaotic and disorderly, and the rubbing test is soft and there is no bottom water.
That's all for today's sharing.
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