Post by : NGDlover
Author : Jennifer Qiu
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When we were young, we were told a Fairy story by our dear parents. The moment the clock struck to 12:00 pm, cinderella knew that she had to ride on her caoch (pumpkin) to hurry home. But carelessly, she dropped one of her crystal shoes. It was by this crystal shoe, the prince found her. At last, they lived a happy life. So crystal, it is full of misery and romance.
A crystal or crystalline solid is a solid material whose constituent atoms, molecules, or ions are arranged in an orderly repeating pattern extending in all three spatial dimensions. The scientific study of crystals and crystal formation is crystallography. The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification.
While the term "crystal" has a precise meaning within materials science and solid-state physics, colloquially "crystal" refers to solid objects that exhibit well-defined and often pleasing geometric shapes. In this sense of the word, many types of crystals are found in nature. The shape of these crystals is dependent on the types of molecular bonds between the atoms to determine the structure, as well as on the conditions under which they formed. Snowflakes,diamonds, and table salt are common examples of crystals.
Crystal could be made into all kinds of ornaments , such as crystal necklace, crystal pendants, crystal bracelets, crystal earrings, and so on. As long as you can image, the crystal products will be in the market. The crystal items are suitable for both young people and old people, because they are so charming, and so easy to be matched various kinds of clothes.
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