17These rings are indicative in the crystal composition of nickel and will be discussed only by invoking wavelike properties of sunshine.这些光圈表明了了镍的晶体结构，而且只能通过光线中波的特征来解释。
杂质、裂纹越少越好。质地好的水晶制品，应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点，则属于次品。
A crystal construction concentrates on how the atoms are arranged inside the crystal. However, crystallographers have an interest in the general shape and size with the crystal and its exterior qualities. To perform this, they have to understand about the crystal technique.
Fig. seven: A template-directed approach can control The location of making blocks on a area while in the development of complex constructions.
In addition there are numerous supplies that resemble crystals but are actually polycrystals. Polycrystals form when microscopic crystals fuse together to variety a stable. These elements tend not to consist of ordered lattices.
发晶，包括钛晶，铜顺发，绿发晶，黑发晶，银发晶，杂色发晶，其中钛晶最珍贵，少数钛晶价值可比钻石，红宝石和蓝宝石以及祖母绿。
Crystals look exclusive from all kinds of other rocks and minerals, but �?barring several Distinctive scenarios �?almost all minerals disguise a crystalline structure beneath the surface area.
市场上有很多人把熔炼水晶也叫做合成水晶，那是不准确的，一般都是以水晶废料为原料在高温高压下熔炼出来的，而不是结晶成的，不具备水晶的晶体特性，所以不能把熔炼水晶与合成水晶混为一谈；但是熔炼水晶耐高温，用优质二氧化硅熔炼成的熔炼水晶可以做成实用产品比如水晶杯、烤盘、茶具等，实际上一代伟人毛泽东主席的水晶棺就是选用东海优质水晶熔炼而成的。
A lot of crystals behave like butter in that they're hard at low temperatures but tender at increased temperatures. They're called Crystal solids whatsoever temperatures under their melting point. A achievable definition of the good is undoubtedly an object that retains its shape if remaining undisturbed. The pertinent issue is how much time the article keeps its condition. A remarkably viscous fluid retains its condition for an hour or so although not a 12 months. A reliable will have to retain its condition longer than that.
A crystal technique refers back to the classification of crystals determined by the geometric arrangement and symmetry in their lattice buildings. There are 7 main crystal techniques:
被主体水晶所捕获的包裹体。原生包裹体通常为固相，形态较规则。水晶中典型的原成包裹体有金红石、电气石、黄铁矿等，也会见到岩石碎屑或集合体。
Fig. 1: Schematic of crystal development from creating blocks made up of a particle Main and a shell of DNA ligands attached to your particle area.
水晶饰品越来越受到人们的喜爱。中国、日本、韩国、美国等国家的人们还对水晶球情有独钟，喜欢将它们摆在家里或办公室里，认为水晶球有灵性，能保平安，带来财运。不过天然水晶不像看起来那么晶莹剔透，它也有瑕疵，我们在选购饰品的时候要注意。此外，我们还要掌握水晶的评价依据、选购方法，这样可以帮助我们在琳琅满目的水晶饰品中选到心仪的水晶。
This crystal framework is liable for the unique Bodily and chemical Attributes of sodium chloride, which include its substantial melting stage, electrical conductivity, and ability to kind ionic bonds easily.