The 5-Second Trick For Crystal
The 5-Second Trick For Crystal
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水晶表面坑洼的地方，有的深，有的浅，这是水晶在成长过程中自然形成的，并非是人为造成的损伤。缺陷位置本来包有其他矿物晶体，由于包裹体和水晶结合部位的结合力不强，当表面抛光时，矿体脱落，留下空位。这种缺陷在绿幽灵、钛晶、金发晶上都比较常见。
Crystals are attractive rock formations which have amazed people for 1000s of a long time. They are really used for numerous different things, not just for decoration. Many of the 1st radios at any time invented employed crystals to transmit the radio waves. Some instruments, like quartz watches and laser crystals, use Distinctive Attributes and harmonic abilities of crystals to make highly correct measurements and changes.
水晶文化历史悠久，古人曾赋予它一串极富美感的雅称：水玉、水精、水碧、石英等。
Most sound resources found in character exist in polycrystalline type rather than as a single crystal. They are literally composed of millions of grains (compact crystals) packed jointly to fill all Area. Each unique grain has a unique orientation than its neighbours. Whilst very long-array buy exists in just one grain, in the boundary among grains, the purchasing improvements route. An average piece of iron or copper (Cu) is polycrystalline.
Fig. four: Making blocks with distinct shapes and area chemistries immediate the formation of distinctive crystal symmetries.
发晶，包括钛晶，铜顺发，绿发晶，黑发晶，银发晶，杂色发晶，其中钛晶最珍贵，少数钛晶价值可比钻石，红宝石和蓝宝石以及祖母绿。
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：
如果水晶内部杂质中有传说中人物的造型，如佛、星座、生肖等价值可能要高于同等颜色和净度的水晶。
24I need to make my indicating crystal crystal clear.我想把我的意思解释得清清楚楚。《牛津词典》
广义的包裹体是指宝石内部含有的与主晶宝石化学成分、物理性质等不同的物质。
All crystal ball crystal apparent copyright liquid crystal crystal lattice crystal composition liquid crystal Show See all meanings Idioms and phrases crystal clear idiom
隐晶类水晶外观是一块块的，不是成六角水晶簇状，但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶，因为结晶的体积极为细小，需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑，因为结晶之间有“水化硅石”填补，玛瑙便属于此类。
Crystals are labeled on the whole classes, for instance insulators, metals, semiconductors, and molecular solids. A single crystal of an insulator is frequently transparent and resembles a bit of glass. Metals are shiny Except if they may have rusted. Semiconductors are sometimes shiny and occasionally transparent but are hardly ever rusty. Quite a few crystals might website be classified as a single form of good, while others have intermediate behaviour. Cadmium sulfide (CdS) can be prepared in pure type and is an excellent insulator; when impurities are extra to cadmium sulfide, it turns into an interesting semiconductor.
Yet another form of crystalline carbon relies over a molecule with sixty carbon atoms referred to as buckminsterfullerene (C60). The molecular condition is spherical. Each carbon is bonded to 3 neighbours, as in graphite, and the spherical form is reached by a combination of 12 rings with five sides and twenty rings with six sides. Related structures had been very first visualized from the American architect R. Buckminster Fuller for geodesic domes.