How to open windows and polish jadeite gambling stones

The finished jade products are naturally beautiful, but after going through the entire industrial chain and distributing profits to the final consumer market, their prices are equally beautiful. Some people who love jade are beginning to be eager to try gambling on jade. The "jade gambling stone" industry has gradually become popular in various places, especially friends who travel to Yunnan bring back gambling stones of various sizes. Looking at the skin covering the gambling stone, I have an urge to open it and take a look.

1. Peeling: Use fine hand movements on a hanging grinder to remove the skin of the jadeite raw stone. This will leave several deep groove-like marks on the surface of the raw stone.

2. Digging out dirt: After peeling, there will still be a small amount of impurities on the skin of the jadeite stone deeply embedded in the jade flesh, which must be ground off with grinding heads of various shapes. The standard for digging it out is: you see pure white water dripping and the grinding head feels strenuous.

3. Roughening: In order to remove the skin and dirt, we often use the coarsest grinding head to increase the grinding speed (grinding head with 60~80 sand). Next, we need to change to a grinding head with a different grade (grinding head with 240~400 sand) to carry out the roughening process.

4. Fine grinding: Change to the diamond grinding head (No. 800 grinding head) for fine grinding on the surface of the jadeite raw stone. This kind of grinding head rarely removes material. As the water droplets flow through, you will find that the "precious light" slowly begins to appear on the surface of the jade window.

5. Rough polishing: Use different grades of oilstones or sandpaper to grind the surface of the jade until you can no longer feel any marks on the surface of the jade with your fingers; or use a bench grinder with different types of grinding wheels for grinding. For uneven places, use a hose and a pointed wool grinding needle, and grind with small-grade diamond powder paste.

6. Fine polishing: Mix the diamond powder into a paste, find a piece of bamboo and dip it in the diamond powder paste and rub it back and forth on the surface of the jade. This requires patience and perseverance. When you feel that the bamboo starts to slip on the jade, you are not far from success. You can also use a hanging grinder or a bench grinder with a hose, a wool wheel and high-grade diamond powder paste to polish a large area, and then use a wool ball and high-grade diamond powder paste to polish the uneven fine parts.

7. Polishing: Cover the window surface with paste-like diamond polishing powder, use a leather top to rotate at high speed to drive the contact polishing surface, and the jade glass luster will appear under the instantaneous high temperature. During this process, be careful not to let the leather top contact the jade surface for too long, to prevent the high temperature from burning the jade and causing the jade to dehydrate and turn white. Use the same method to brush the concave surface of the jade and some places that the leather can't reach.

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