Detailed Notes on Crystal
Detailed Notes on Crystal
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These crystals ended up fashioned around one million years back inside the Earth's crust. They take place when the liquid from the Earth consolidates plus the temperature chills. Other crystals type when the liquid can make its way with the clefts and dispense minerals into the clefts.
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看做工：水晶制品加工过程分为两种，即磨工和雕工。如水晶项链、手链、耳环等属于研磨品；观音像、内画鼻烟壶等属于雕刻品。
Tetragonal: These crystals variety prisms and double pyramids. The framework is sort of a cubic crystal, apart from a person axis is extended than the other.
. These 4 buildings comprise many of the binary crystals with equivalent quantities of cations and anions.
They can ultimately come up with a good very little uniform cluster of atoms, This is certainly the whole process of rising crystals. The more they are able to arrive collectively, the more of a formation will likely be seen for the bare eye. Researchers can decide what mineral They're taking a look at by how the crystals kind.
对任何宝石来说，颜色都是非常重要的，水晶也不例外。如果是水晶晶体是有颜色的，如粉水晶、黄水晶、紫水晶等，其颜色评价的最高标准则是明艳动人，不带有灰色、黑色、褐色等其他色调。如粉水晶，颜色以粉红为佳；紫水晶，要求颜色为鲜紫，纯净不发黑；黄水晶，要求颜色不含绿色、柠檬色调，以金橘色为佳。对于发晶来说，晶体的颜色也是很重要的。相同发丝的金发晶，晶体完全无色（白水晶）和晶体略偏茶色，肉眼的视觉观感也是有差别的，所以前者的价格会高于后者。
发晶：无色、浅黄、浅褐等，可因含金红石常呈金黄、褐红等色，含电气石常呈灰黑色；含阳起石而呈灰绿色。
13Nearly all computer systems consist of a quartz-crystal clock to regulate their Procedure.几乎所有的计算机都有一个石英晶体时钟来调节它们的运行。
crystal The freshly crystallized quartz grains are characterized by elongate crystals oriented oblique towards the shear band margins, defining a typical grain-condition foliation. 来自 Cambridge English Corpus We say the chain topology from the higher w area functions because the proverbial ' scratch-on-theglass ' needed within the natural and organic chemistry laboratory to create crystals. 来自 Cambridge English Corpus The age scatter amongst the individual crystals may reflect incorporation of xenocrysts from previously magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene kinds neutral to pale brown, subhedral to anhedral crystals, from time to time made up of inclusions of plagioclase microlaths and opaque phases.
Single crystals of metals are gentle and malleable, while polycrystalline metals are more click here difficult and more robust and tend to be more practical industrially. Most polycrystalline supplies could be produced into big one crystals after prolonged heat therapy. In past times blacksmiths would warmth a bit of steel to really make it malleable: heat will make several grains mature massive by incorporating smaller ones. The smiths would bend the softened steel into shape and after that pound it awhile; the pounding would ensure it is polycrystalline once more, increasing its power.
Molecular Crystals: Complete molecules are bonded to one another within an structured fashion. A great illustration is usually a sugar crystal, which has sucrose molecules.
水精：水晶为何称为水精，《广雅》有巧解：�?水之精灵�?”；李时珍则说：�?莹洁晶光，如水之精英 ”。细加考究，此称还蕴含浓厚的宗教意味呢。水精一名，最初见于佛书，后汉支曜翻译的《具光明定意经》说：�?其所行道，色如水�?�?。
Fig. 5: The chance to understand described crystal behavior is depending on the symmetry engineering solution.