The top ten worthless crystals are glass crystal, bronze crystal, red crystal, crystal stone, amethyst, pink crystal, emerald crystal, olivine crystal, black crystal and titanium crystal, as follows:

1, glass crystal: it is an artificial crystal that imitates rock crystal. Because it is artificial, it is cheap and worthless.

2. Bronze crystal: It is an artificial crystal made of copper and glass, which is worthless.

3. Red crystal: It is a common crystal stone because of its large output and low price.

4. Crystal stone: it's an artificial crystal, so the price is not high because of its low cost.

5. Amethyst: It is a common crystal stone with low price.

6. Powder crystal: it is light pink crystal stone, and the price is not very high.

7. Emerald crystal: It is a kind of green artificial crystal. Because it is not true emerald, the price is lower.

8. Olivine crystal: It is a green artificial crystal, because it is artificial and the price is not high.

9. Black crystal: It is a kind of black artificial crystal, because it is artificial and cheap.

10, titanium crystal: it is a common crystal stone with low price. ?