Facts About Crystal Revealed
Facts About Crystal Revealed
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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。
Bismuth (Bi) appears being a steel, but the amount of electrons available for electrical conduction is comparable to that of semiconductors. In reality, bismuth is known as a semimetal. Molecular solids are usually crystals shaped from molecules or polymers. They are often insulating, semiconducting, or metallic, according to the type of molecules while in the crystal. New molecules are constantly currently being synthesized, and plenty of are created into crystals. The volume of different crystals is gigantic.
10This is definitely the silicon chip—slightly chip of silicon crystal.这是硅芯片——一个硅晶体的小芯片。
Substantial crystals of diamond are important gemstones. The crystal has other interesting Homes; it's got the highest audio velocity of any stable and is the best conductor of heat. Besides diamond, the other popular method of carbon is graphite, that is a layered content. Every carbon atom has 3 coplanar in close proximity to neighbours, forming an arrangement called the honeycomb lattice. Three-dimensional graphite crystals are received by stacking related levels.
. These four structures comprise almost all of the binary crystals with equal 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。
30Three times went previous, and I had been shocked to see it yet again: every one of the openings were being sewed up by slim and white thread they usually seemed just like the ice crystal on Winter season's branches during the north.
1A crystal chandelier lit the space.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
Crystals are sometimes viewed as one thing of immense beauty, they usually are generally made use of with diamonds or other stones to help make items of jewelry. The majority of crystals now are person-created in laboratories.
Solids that have short-selection buy but absence extensive-range buy are termed amorphous. Pretty much any materials could be manufactured amorphous by swift solidification with the soften (molten condition). This situation is unstable, as well as the solid will crystallize in time. In the event the timescale for crystallization is many years, then the amorphous point out appears secure.
From your Cambridge English Corpus We say the chain topology within the higher w area functions since the proverbial ' scratch-on-theglass ' necessary while in the organic and natural chemistry laboratory to generate crystals. Within the Cambridge English Corpus Frequent-stress and temperature molecular-dynamics simulations of crystals of your lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From the Cambridge English Corpus Along with these, dust particles are actually observed in reduced-temperature plasmas, like All those Utilized in plasma processing and plasma crystals. From the Cambridge English Corpus The final Section of the guide concentrates on peculiarities of strongly coupled dusty plasmas, such as the development of dust crystals and related interesting forces. Within the Cambridge English Corpus Comprehensive characterization of injury threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. In the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or even more irregular, Principal morphologies weren't observed. From your Cambridge English Corpus See all samples of crystal These illustrations are from corpora and from resources online. Any opinions from the examples tend not to characterize the viewpoint from the Cambridge Dictionary editors or of Cambridge University Push or its licensors.
水晶的价值还与块体大小有关，同样的颜色和净度级别，块越大越难得。有时候质量级别虽然低一些，但块体够大，也可能价格高于高级别的小晶体
Crystals are categorised generally speaking groups, including insulators, metals, semiconductors, and molecular solids. An individual crystal of an insulator is generally clear and resembles a bit of glass. Metals are shiny Until they may have rusted. Semiconductors are occasionally shiny and from time to time clear but are under no circumstances rusty. Lots of crystals may be classified as a single style of sound, while others have intermediate behaviour. Cadmium sulfide (CdS) might be ready in pure form and is a wonderful insulator; check here when impurities are additional to cadmium sulfide, it turns into an interesting semiconductor.
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。