15 Little Known Cold Jewelry Facts, Especially the last one

1.Gold is not a product of the earth, but brought by meteorites.

2. The blackening of the silver jewelry does not absorb the toxins of the body, but encounters sulfur and has a chemical reaction.

3. Gold turns white when it comes in contact with mercury, and when it turns black, it comes in contact with lead.

4. More than 200 kinds of gems have been found in the world, and only about 25 are circulating in the market.

5. Tianzhu is not natural, it is all artificial.

6. Pearls are very afraid of water, and long-term contact with water will cause the pearl layer to fall off.

7. There are about 0.2 milligrams of gold in adults, and it takes about 5 million people to collect 1 kilogram of gold.

8. Indians will wear jewelry no matter how poor they are. They are a major gold consumer, and no country can surpass them.

9. Crystals are afraid of high temperatures, and boiling water can make crystals burst.

10. Honey wax cannot be identified by needle scalding fragrance, salt water floating, and internal texture.

11. 90% of the round beads of tourmaline on the market are glued.

12. The production of 1-carat diamond requires 250 tons of raw ore.

13. Tibetan silver is not silver, but white copper.

14. Turquoise blue is better than green.

15. 600g of gold can circle the earth.

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