1, rainbow eye: ordinary obsidian without rainbow eyes, that is, when you look at the light under strong light, the beads are still black and there is no other reflection. If the pendant passes through the light, the light is light yellow and dark green. Rainbow eye (light) obsidian means that you can slowly see green/purple/yellow eyes under strong light, under the sun, or under the flashlight of your mobile phone.

2. Internal structure and color: Due to its special formation characteristics, obsidian often has many small bubbles in a flowing structure. In addition, when you illuminate Obsidian with a strong flashlight, you will find that the color of Obsidian is not black, but dark brown or dark brown yellow.

3. Temperature: Like crystal spar, the temperature of obsidian is relatively low. You can lick it with your tongue and feel if it is much cooler than glass.

4, flow structure: Obsidian often has some small bubbles inside, and the outside is a flow structure, but because Obsidian is too dark, it needs to be seen under strong light.

5. Value: Obsidian resources are not rich, and many obsidian products on the market are mostly imitations, which can be distinguished from the price. The price of real obsidian is around 100 yuan, while fake obsidian can be bought for more than ten or twenty yuan. What I am most afraid of is that some unscrupulous merchants sell dozens of imitations at a price of several hundred yuan, which requires customers to polish their eyes. Be sure to go to a regular brand and a brand store with high credibility.