17These rings are indicative from the crystal structure of nickel and might 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 focuses on how the atoms are organized inside the crystal. Nevertheless, crystallographers are interested in the general form and size of your crystal and its external features. To accomplish this, they have to know about the crystal technique.
Significant crystals of diamond are important gemstones. The crystal has other intriguing Homes; it's got the highest sound velocity of any good and is the best conductor of heat. Besides diamond, the other prevalent method of carbon is graphite, which can be a layered product. Each carbon atom has a few coplanar around neighbours, forming an arrangement called the honeycomb lattice. Three-dimensional graphite crystals are attained by stacking related levels.
. These 4 structures comprise most of the binary crystals with equivalent figures of cations and anions.
无色水晶与无色长石因折射率和密度十分接近故较难区分。主要方法是放大检查。长石有两组极完全解理，显微镜下可见两组解理相交而成的“娱蛤状”包裹体或细直的纹理，而水晶则无解理发育，仅有时可见断续不规则的裂理。
解理：无解理。所谓解理是指矿物被打击时，沿一定方向有规则地裂开形成光滑平面的性质。根据解理的程度可以分为五类：极完全解理、完全解理、中等解理、不完全解理和无解理，水晶属于无解理。
Hexagonal �?Characterised by four axes, a few of that are equal in size and intersect at one hundred twenty degrees, using a fourth axis perpendicular to the opposite three.
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看文化：水晶里面的包裹体象形，能与文化、宗教及历史有所牵连的话，价格往往会比水晶本身的价值高出几倍甚至几百倍。
The fundamental units of solids are both atoms or atoms which have merged into molecules. The electrons of the atom transfer in orbits that form a shell structure round the nucleus. The shells are loaded in a scientific order, with Just about every shell accommodating only a little range of electrons. Diverse atoms have unique quantities of electrons, which happen to be distributed website in a characteristic electronic construction of loaded and partially stuffed shells.
There are just a few different unit-mobile styles, so many different crystals share one device-mobile style. A crucial characteristic of the device cell is the number of atoms it is made up of. The overall amount of atoms in the complete crystal could be the selection in Every cell multiplied by the volume of unit cells. Copper and aluminum (Al) each have 1 atom for every device cell, although zinc (Zn) and sodium chloride have two. Most crystals have only a few atoms for every device mobile, but usually there are some exceptions. Crystals of polymers, as an example, have Countless atoms in Just about every unit mobile.
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矿物成分：针铁矿、赤铁矿、金红石、磁铁矿、电气石、石榴石、云母、绿泥石等形成了包裹体水晶，如发晶、钛晶、绿幽灵等，发晶中则含有肉眼可见的似头发状的针状矿物的包裹体形成。含锰和铁者称紫水晶；含铁�?；呈金黄色或柠檬�?)称黄水晶；含锰和钛呈玫瑰色者称蔷薇石英，即粉水晶；烟色者称烟水晶；褐色者称茶晶；黑色透明者称为墨晶。