The 5-Second Trick For Crystal
The 5-Second Trick For Crystal
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These crystals were being fashioned above a million many years back inside the Earth's crust. They occur if the liquid within the Earth consolidates and also the temperature chills. Other crystals variety in the event the liquid makes its way through the clefts and dispense minerals into the clefts.
Crystals are wonderful rock formations that have surprised people for thousands of years. These are useful for numerous various things, not only for decoration. Many of the to start with radios at any time invented used crystals to transmit the radio waves. Some instruments, like quartz watches and laser crystals, use Specific Houses and harmonic abilities of crystals to produce really precise measurements and changes.
结晶的形状非常细小，需要用显微镜才能看得清楚，外观上看起来是平滑、块状。常见最多的是各式玛瑙
We have prepared about in excess of 300 stones while in the mineral kingdom! Read about each stone's distinctive origin, record, and energies below.
C2 [ U ] transparent glass of quite good quality, normally with its area Slash into sensitive designs:
你们都知道，拿起一个水晶棱镜，让一束阳光通过它，就会得到一个光谱，看起来就像一条连续的彩虹色带。
Incorporate to phrase listing Insert to term list [ C/U ] transparent rock that appears like ice, or even a piece of it
市场上有很多人把熔炼水晶也叫做合成水晶，那是不准确的，一般都是以水晶废料为原料在高温高压下熔炼出来的，而不是结晶成的，不具备水晶的晶体特性，所以不能把熔炼水晶与合成水晶混为一谈；但是熔炼水晶耐高温，用优质二氧化硅熔炼成的熔炼水晶可以做成实用产品比如水晶杯、烤盘、茶具等，实际上一代伟人毛泽东主席的水晶棺就是选用东海优质水晶熔炼而成的。
仿制钛晶树水晶：钛晶是水晶里价格最昂贵的，造假者当然也不会放过这么好的产品。天然的环境下，在水晶里能生长个像树一样的钛晶，完全是可能的，只是这样的货很少，那我们的造假专家是如何做的呢，白水晶底下打个洞，激光打点成板状的钛晶进去，就这样这块水晶的身价就能飙升几十倍。往往有的钛晶戒面，会采用将钛晶部位割成板状，与圆面的水晶粘合的方法来制作。
Crystals with noticeable flat faces are identified as euhedral crystals, although those missing described faces are known as anhedral crystals. Crystals consisting of requested arrays of atoms that aren't normally periodic are called quasicrystals.
15The trick to a fantastic thermoelectric material can be a crystal framework wherein electrons can movement freely.制造一种好的热电材料的关键是，需要一种电子可以自由流动的晶体结构。
Crystal Lattices You can find seven devices of crystal structures, which can be also known as lattices or Area lattices:
⑨、喷砂：立体感弱，较平整，无凹凸感，机器雕刻文字、图形等后进行效果处理。成本低制作快。
crystal Alteration is variable: absent in several crystals, in Many others manufacturing dense sericite aggregates which can exhibit some recrystallization results to make coarser-grained white mica. From your Cambridge English Corpus The tridymite crystals are rectangular or wedge-formed and are occasionally organized in aggregates. Within the Cambridge English Corpus Also, haloarchaeal cells were being embedded inside of salt crystals beneath laboratory situations and subsequently analysed by light-weight microscopy. Through the Cambridge English Corpus The white clouds (normally sparse) had been also greatly thought to be staying composed here of very small crystals of h2o ice, alternatively like cirrus in our environment. From the Cambridge English Corpus They may be located in evaporite salt lakes and might be trapped in salt crystals in the course of evaporation. With the Cambridge English Corpus For that reason, the cells (organelles and membranes) are destroyed mechanically by ice crystals, bringing about Loss of life through cell lysis. From your Cambridge English Corpus The crystals ended up Employed in the main or second orders of reflection. With the Cambridge English Corpus Within our 8xperiments, the crystals were cubes that has a base spot of eight e mm. From your Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : result of temperature and tension.