Is crystal a kind of stone?

Crystal is a rare mineral, a kind of gem, and a timely crystal, which belongs to the timely family in mineralogy. The main chemical composition is silicon dioxide.

When the crystal is pure, it forms a colorless and transparent crystal. When containing trace elements, the irradiated trace elements form different types of color centers and produce different colors.

In ancient China, crystals were used to represent "crystal clear objects" and "bright moonlight".

1, "Zi Tong Zhi Jian, Two Years of Emperor Gaozu's Tianfu at the end of Jin Dynasty", "Wei Zi Palace was built by Fujian, decorated with crystals."

2, "Ancient and modern novels, Li Gongzi saved the snake to be satisfied" "The utensils are all made of glass, crystal, amber and agate, and the music is ingenious and not owned by the world."

3、《lt； The preface to Ai Qing's Selected Poems is "Meditate on the shape of flower dew and love the quality of crystal."

4. "Full Tang Poetry" Volume In 785, Bai Xuege "Birds pecked at the jade mirror in the ice pool, and the wind knocked on the eaves to slip the crystal."

5, Wei's "Western Suburb Banquet Poetry" "Cold and cold contain ice brain, cherry drops crystal."

6. Hong Qingsheng's "The Song of the Immortal Palace" "The cold toad just rose to the pavilion, and the curtain rolled up to reflect the crystal."

7. Chen Qing Song Wei's "The Legacy Collection of Bodhisattva Man Titi Qingxi" "I still remember to hide and seek, and the crystal courtyard is cool."