A Simple Key For Crystal Unveiled
27Local economists have looked into their crystal balls and observed anything alternatively awful.当地的经济学者们已预测到将会出现棘手的问题。《柯林斯英汉双解大词典》A basic notion in crystal structures is the unit cell. It's the smallest unit of volume that permits equivalent cells for being organized together to occupy all obtainable House. The geometrical basis of all crystals may be the lattice. A lattice can be considered as an everyday and infinite arrangement of factors or atoms, wherever each stage or atom has An analogous bordering atmosphere.
发晶的价值取决于发的颜色、罕见性及大小，一般是发色鲜艳、块度大的价格高。水胆水晶的价值主要取决于水胆及晶体的大小、透明度的高低。如果水胆较大并有一定形态，便可加工成较为珍贵的工艺品。另外水胆中的水也有一定的科学研究价值，通过它们可了解几百万年前地球上水的成分及变化。
The ordered interior structure of huge crystals, like the fluorite and quartz shown right here, is reflected of their geometric designs.
2She was putting on a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
Lattices could possibly have a single lattice position per here mobile or multiple, yielding a complete of 14 Bravais crystal lattice forms. Bravais lattices, named for physicist and crystallographer Auguste Bravais, explain the three-dimensional array created by a set of discrete details.
水晶内部有多种矿物包裹体，形成的各种景观可以肉眼观测，这样的水晶就是包裹体水晶观赏石。由于水晶本身就是宝石，因此人们称誉包裹体水晶为“宝石级的观赏石”。包裹体水晶观赏石都具有独特性，具有极高欣赏和收藏价值。
Crystals could be grown beneath moderate problems from all ninety two Normally occurring elements except helium, and helium might be crystallized at very low temperatures by making use of twenty five atmospheres of strain.
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。
⑤化学稳定�?非常好，在常温下仅溶解于氢氟酸，不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。
天然性是水晶观赏石的基本特性。通常整体造型水晶矿物不饰雕琢就具备很高的观赏价值，但是包裹体水晶观赏石经常需要适当打磨抛光，这样更方便观赏水晶内部的包裹体。
The arrangement of the atom’s electrons decides its chemical Qualities. The properties of solids tend to be predictable with the Attributes in their constituent atoms and molecules, and different shell buildings of atoms are hence responsible for the range of solids.
玉石纹理如果能形成美丽的花纹、图案，其价格就高，如玛瑙内红白相间的色带有规律地排列，形成缠丝玛瑙时，碧玉中的不均匀颜色形成一种风景图案时，材料的价值将提高。当水晶内包裹体形成美丽的图案时，如幽灵水晶、风景水晶，或者针状包裹体呈束状排列时，其价值都高于普通的水晶。图案越美观、越有意境越好。
Tetragonal �?Characterised by 3 mutually perpendicular axes, two of that happen to be equivalent in length, whilst the 3rd is for a longer time or shorter and perpendicular to one other two.