Not known Factual Statements About Crystal
Not known Factual Statements About Crystal
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看颜色:即使在同一种类的水晶中,它的不同部位的纹理、色泽也各式各有千秋。属于单色的,要色度均匀;在同一块水晶上有深浅的,则要求其色调纹路美观大方。
①压电效�?在机械力(压力或拉�?作用下,水晶单晶体的两端会产生电荷,其电量相等但符号相反。在工业上,无色、无缺陷、不具双晶的水晶常被用来作压电石英片。
10This is the silicon chip—a little bit chip of silicon crystal.这是硅芯片——一个硅晶体的小芯片。
水碧:《山海经》中,水晶又被称作水碧: �?又南三百里,日耿山,无草木,多水碧 �?,郭璞注�?�?亦水玉类 ”。这种称谓常被文人所引用,晋代郭景纯《璞江赋》道�?�?鬼,水碧�?�?。水晶又有人称它叫玉瑛。《符瑞图》载�?美石似玉,水精谓之玉瑛也�?”
C2 [ U ] transparent glass of pretty good quality, ordinarily with its area Minimize into delicate styles:
They're going to inevitably produce a pleasant small uniform cluster of atoms, this is the entire process of escalating crystals. The greater they might appear with each other, the greater of the development will probably be visible on the naked eye. Researchers can decide what mineral They are really taking a look at by how the crystals kind.
时尚的收藏爱好者喜欢收藏天然水晶,却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶:
For a sizzling Remedy cools or maybe a saturated Option evaporates, particles attract shut plenty of for chemical bonds to type. Crystals also can variety from deposition straight from the fuel phase. Liquid crystals possess particles oriented within an organized way, like stable crystals, nonetheless have the ability to movement.
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。
22Working from what The united states by now appreciates about alone, the bureau's gurus and other demographers present an irresistible, if clouded, crystal ball amid their visions.
. The next layer is shaded while in the determine. It's the same airplane-triangular composition; the atoms sit while in the holes fashioned by the initial layer. The very first layer has two equal sets of holes, nevertheless the atoms of the second layer can occupy just one established. The third layer, labeled C
Fig. one: Schematic of crystal formation from creating blocks composed of a particle Main along with a shell of DNA ligands hooked up towards the particle floor.
Crystals are classified on the whole groups, for instance insulators, metals, semiconductors, and molecular solids. One crystal of an insulator is usually transparent and resembles a bit of glass. Metals are shiny unless they've got rusted. Semiconductors are occasionally shiny and in some cases transparent but are never ever rusty. Quite a few crystals could be categorized as just one sort of sound, while others website have intermediate behaviour. Cadmium sulfide (CdS) is often ready in pure form and is a wonderful insulator; when impurities are extra to cadmium sulfide, it becomes a fascinating semiconductor.
对于紫水晶黄水晶这样的单色水晶,通常要观察它的二色性,即使是最顶级的紫水晶黄水晶也是有色差的,通过这个方法可以鉴别是否加色。