An Unbiased View of Crystal
An Unbiased View of Crystal
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Calcite crystals are sometimes Utilized in optical gear, and in many cases the graphite in pencil lead are sheets of crystals that in essence break aside layer by layer to write down. Silica can type silicate crystals which can be The idea for quartz, mica, olivine, and all kinds of other crystals and minerals.
A basic concept in crystal structures will be the device mobile. It is the smallest device of quantity that allows equivalent cells for being arranged together to occupy all obtainable Place. The geometrical basis of all crystals will be the lattice. A lattice could be seen as a regular and infinite arrangement of points or atoms, exactly where Each individual position or atom has A similar bordering surroundings.
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。
Most strong materials located in nature exist in polycrystalline sort in lieu of as one crystal. They are literally composed of numerous grains (modest crystals) packed collectively to fill all space. Every person grain has a special orientation than its neighbours. Despite the fact that lengthy-selection purchase exists inside of 1 grain, with the boundary involving grains, the buying modifications direction. A typical bit of iron or copper (Cu) is polycrystalline.
断口：贝壳状。断口也叫破口。它是指矿物被打击后产生不规则的破裂，破裂裂面凹凸不平称为断口。根据断口的形状可分为贝壳状和锯齿状。
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水晶原石观赏石，从字面意义理解：观赏水晶石的原貌，即经过抛光去皮后的包裹体水晶和原色水晶，不需雕刻不求象形就具有非常高的观赏价值和收藏价值。此类水晶观赏石对质地要求非常之高，水晶晶体通透干净，颜色艳丽，意境鲜明深刻的价值就高，它的价值特点就好比钻石，实实在在石头本身的价值。
26Some of the finest consuming Eyeglasses are constructed from direct crystal.一些最精致的酒杯是用铅晶质玻璃制成的。《柯林斯英汉双解大词典》
本词条由中国科学院大学地球与行星科学学院、中国科学院地质与地球物理研究所 参与编辑并审核，经科普中国·科学百科认�?。
Solids that have shorter-range get but absence lengthy-variety purchase are called amorphous. Just about any content might be produced amorphous by fast solidification from your melt (molten state). This condition is unstable, and the reliable will crystallize in time. Should the timescale for crystallization is many years, then the amorphous condition appears secure.
All crystal ball crystal distinct copyright liquid crystal crystal lattice crystal framework liquid crystal Show See all meanings Idioms and phrases crystal apparent idiom
Crystals are not merely renowned for his or her Bodily appearance, but unique crystals of various materials and formations may check here end up in an enormous assortment of takes advantage of and Actual physical Houses.
在透明的水晶中，隐裂纹呈亮晶晶的片状，有时还会有晕彩效应。这些裂纹是水晶在生长过程中，遇到外力挤压而在内部产生的一些隐形裂纹，隐裂纹在芙蓉石、紫水晶、白水晶球及白水晶柱中都很常见。有的裂纹后来被物质填充，形成愈合的裂纹，也就是原来的裂纹又长住了。这种裂纹对水晶的影响相对要小一些。
水晶的价值根据品质、块体的大小、美感和产量多少的不同相差较大。遇到好的天然水晶要敢于下手，但好的水晶一般大家都想得到，值与不值，就要看经验了。由于天然水晶的开采和制作原因，没有瑕疵的水晶很难得到，纯净的饰品要达到与合成水晶媲美的品质，实在是很难得。另外，由于水晶的特性，在佩戴过程中，也会改变其等级，比如因为某种原因，有可能会逐渐产生较大裂纹。