1. What is a crystal?
Crystal is a mineral crystal, and its main component is silicon dioxide. Because of its high transparency and beautiful appearance, it has high value in jewelry, ornaments, handicrafts and other fields, and is also widely used in medicine, electronics and other fields.
Second, the main component of the crystal-silicon dioxide
1. silica (SiO2), with chemical formula of SiO2 and molecular weight of 60. 1, is a colorless, transparent and fragile mineral. It widely exists in nature and forms the structure of many quartz stones.
2. In the crystal, the content of silicon dioxide is above 98%, which is also an important reason for the high transparency and luster of the crystal. In addition, the crystal also contains trace elements, such as sodium, aluminum, lithium and potassium, which will also affect the appearance and properties of the crystal.
Third, the types of crystals.
There are many kinds of crystals, which can be divided into the following according to different classification standards:
1. time: time is the most common crystal type, and its composition is mainly silicon dioxide. There are different colors and textures in season, and some varieties can shine.
2. Red crystal: Red crystal has bright colors and is mostly used in jewelry, ornaments and other fields.
3. Amethyst: Amethyst is often used to make ornaments, feng shui items, etc. Can bring a peaceful and positive atmosphere.
4. Black crystal: Black crystal is often used to absorb negative energy and protect itself. It is also a common material for some ornaments and ornaments.
Expand knowledge:
1. crystals are widely distributed in nature, mainly in volcanic areas and granite areas around the world. China's Yunnan, Sichuan and other places also have a large number of crystal mineral deposits.
2. For a long time, crystal has always had a mysterious meaning in people's minds, and it is regarded as a gem and a mascot. In the traditional culture of China, crystal is also regarded as one of the symbols representing wisdom, clarity and noble quality.
3. Crystals are widely used in jewelry, ornaments, handicrafts and other fields, and there are many other uses. For example, in the medical field, crystals are widely used to make medical instruments such as scalpels and straws; In the field of electronics, crystal is one of the indispensable materials for making electronic components.