How to identify Black Agate? How about the price of Black Agate
4hw.com.cn: Black Agate is a kind of natural gem, belonging to the chalcedony. Black Agate is deep and glossy, which is loved by many jade lovers. It can be used to ward off evil spirits and symbolize love and hope. The quality of Black Agate in the market is uneven, and even there are many fake goods in it. How can Black Agate identify the true and the false? How about the price of Black Agate? Let's have a look.
How to distinguish the true from the false
Transparency: the transparency of real black agate is not as good as that of artificial synthesis, with a little chaos. Some can see natural water lines or 'clouds', while the transparency of artificial Black Agate is good, as transparent as a glass ball.
Weight: real black agate jewelry is heavier than synthetic black agate jewelry.
Temperature: the real black agate is warm in winter and cool in summer, while the artificial Black Agate changes with the external temperature. When it is hot, it also becomes hot and cool.
First, choose the color according to your favorite agate. Red black agate jewelry is the most valuable. If you choose a black agate necklace, you should pay attention to the same shade of each bead. There is no variegated color. The size of the beads should be appropriate. You should also pay attention to the good finish. Then, lift up the necklace to see whether it is vertical and whether each bead is hanging on a line. If the necklace is bent, it means that some beads have a deviated eye and rough processing technology.
Commonly used imitations are Blackstone, Blackstone, etc. The high-grade Black Agate is black and bright, pure, with natural texture; the imitation black stone, black stone, is opaque, they are also natural products, but their hardness is low, and their luster is also poor than black agate. The proportion of plastic is much lower than that of black agate, that is to say, when it is lifted, the hand feels floating, not falling like black agate. The handle and specific gravity of glass are similar to those of black agate. When a small hard knife is used to carve the surface of black agate, the real black agate will not be scratched (the hardness of Black Agate is 7, the hardness of hard knife is 5.5). However, the glass painted with black paint will show scratches and white background.
How about the price of Black Agate?
Although the price of agate is similar to that of obsidian, natural agate is rarely seen in nature. At present, most of the agates in the agate market are made of artificial high-temperature discoloration, and their color is thick and black, which is easy to be confused with low-grade stones such as obsidian.
Generally, the price of agate is relatively cheap, which is similar to the price of low-grade stones such as obsidian, ranging from tens to hundreds of yuan. It is mainly judged according to the selection of materials, specifications, colors of Daxiao crystal, etc. the price of nearly tens of yuan and the price of expensive ones is hundreds of yuan (here refers to the price of agate hand chain). But the price of those big black agate ornaments is hard to estimate. Here we can only make a valuation according to the average price of the Black Agate sold on the market.