轴性、光性：一轴晶正光性。正交偏光下所看到的一轴晶干涉图是独特的，其黑十字臂未达中心，形成中空的图案，俗称牛眼干涉图。中心部分通常为淡绿色或淡粉色。
⒉棉、云雾或渣状包裹体、杂质在透明水晶内部有雾蒙蒙的现象或是感觉里面像有棉絮状、渣状物质一样的包裹体，这些包裹体的存在，影响水晶的整体美观。还有的水晶内局部含有黑斑或其他颜色的斑状物质，与水晶整体不协调，被视为水晶的杂质，有这种杂质的水晶是次品。
晶及其石英岩类玉石是中低档宝玉石，虽比不上钻石、红蓝宝石的高贵，但在加工中如果构思巧妙而且加工精细，同样具有很高的价值。如中国传统的玛瑙“虾盘”、“龙盘”、“水漫金山�?水胆玛瑙摆件)都被誉为国家级宝玉石。
看原料：选料精良的水晶制品，应看不到胶口及棉絮；质地纯净、光润、晶莹为好。
Crystalline construction is characterized by a geometrical, repeating pattern of symmetric molecular structure. The arrangement of atoms forms these requested, repeating styles.
当二氧化硅结晶完美时就是水晶；结晶不完美的就是石英：二氧化硅胶化脱水后就是玛瑙；二氧化硅含水的胶体凝固后就成为蛋白石；二氧化硅晶粒小于几微米时，就组成玉髓、燧石、次生石英岩。
⑩、雷射内雕：以计算机辅助激光设备在水晶对象中进行三维图案的成型，艺术效果好，可以任意表达各类图案，图形，达到逼真效果
As a hot solution cools or possibly a saturated Resolution evaporates, particles attract near ample for chemical bonds to kind. Crystals could also type from deposition directly from the gasoline phase. Liquid crystals possess particles oriented in an arranged way, like good crystals, yet will be able to move.
包裹体常见有固相、固液气三相组合、空洞以及双晶、色带等。水晶中典型的同生包裹体有自形的锐钛矿、气液两相包体等。
say cheese something which someone who is using a photograph of you lets you know to say so that your mouth would make The form of a smile
The essential units of solids are possibly atoms click here or atoms which have blended into molecules. The electrons of the atom shift in orbits that kind a shell framework around the nucleus. The shells are stuffed in a scientific get, with Each individual shell accommodating only a small amount of electrons. Various atoms have distinct figures of electrons, which can be distributed inside of a characteristic electronic structure of stuffed and partly loaded shells.
Crystals are not simply renowned for his or her Actual physical look, but diverse crystals of various components and formations may result in an enormous assortment of works by using and Bodily Homes.
《古今小说·李公子救蛇获称心》：“器皿皆是玻璃、水晶、琥珀、玛瑙为之，曲尽巧妙，非人间所有。”
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