A solid is crystalline if it has extensive-vary order. After the positions of the atom and its neighbours are identified at one particular point, the area of each and every atom is thought exactly all through the crystal. Most liquids absence extensive-assortment buy, Whilst lots of have shorter-selection buy. Limited vary is outlined as the primary- or second-closest neighbours of an atom. In many liquids the first-neighbour atoms are organized in a similar structure as while in the corresponding sound phase.
23Sometimes, having said that, the crystal type of the silicate inclusions is noticed to resemble additional closely The inner construction of diamond than that of other silicate minerals.然而，有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。
A crystal composition concentrates on how the atoms are arranged inside the crystal. Nevertheless, crystallographers have an interest in the general form and measurement with the crystal and also its external properties. To perform this, they should learn about the crystal program.
Incorporate to word record Incorporate to term checklist C2 [ U ] clear glass of really high quality, typically with its area Lower into sensitive styles
C2 [ U ] transparent glass of incredibly superior quality, commonly with its floor Lower into sensitive styles:
⑧、雕刻：立体感强，工艺高，做工精细，成本高。分手工雕刻图形、机器雕刻文字。
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1A crystal chandelier lit the home.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
13Nearly all personal computers have a quartz-crystal clock to control 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 characterised by elongate crystals oriented oblique on the shear band margins, defining a standard grain-condition foliation. 来自 Cambridge English Corpus We are saying the chain topology from the high w region functions given that the proverbial ' scratch-on-theglass ' needed while in the natural and organic chemistry laboratory for making crystals. 来自 Cambridge English Corpus The age scatter among the the individual crystals might reflect incorporation of xenocrysts from earlier magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene sorts neutral to pale brown, subhedral to anhedral crystals, occasionally that contains inclusions of plagioclase microlaths and opaque phases.
. The next layer is shaded in the figure. It's the same aircraft-triangular composition; the atoms sit during the holes fashioned by the very first layer. The first layer has two equivalent sets of holes, though the atoms of the 2nd layer can occupy website just one established. The third layer, labeled C
The arrangement of an atom’s electrons determines its chemical Attributes. The Houses of solids usually are predictable with the Homes in their constituent atoms and molecules, and the several shell constructions of atoms are therefore responsible for the diversity of solids.
Crystals are labeled usually classes, like insulators, metals, semiconductors, and molecular solids. Only one crystal of the insulator will likely be clear and resembles a bit of glass. Metals are shiny unless they have got rusted. Semiconductors are occasionally shiny and occasionally transparent but are never ever rusty. Lots of crystals is often categorised as one form of solid, while others have intermediate conduct. Cadmium sulfide (CdS) can be geared up in pure variety and is an excellent insulator; when impurities are added to cadmium sulfide, it gets a fascinating semiconductor.
⑥白色的包裹体有蚀变的绿泥石、云母、愈合裂隙、水晶、方解石、透闪石等。