An Unbiased View of Crystal
An Unbiased View of 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 wonderful rock formations which have stunned human beings for A huge number of several years. They are really employed for lots of different things, not just for decoration. Many of the initially radios at any time invented employed crystals to transmit the radio waves. Some instruments, like quartz watches and laser crystals, use special Houses and harmonic capabilities of crystals to produce remarkably exact measurements and changes.
对水晶进行评价主要依据其颜色、透明度、大小、净度、特殊图案及是否有光学效应等方面。以颜色纯正,浓度较高,内部无瑕为好。种类上紫晶最贵,其次为黄晶、烟晶、无色水晶和芙蓉石。有特殊光学效应的水晶的价格更高。
Tetragonal: These crystals kind prisms and double pyramids. The composition is like a cubic crystal, apart from just one axis is more time than one other.
2She was sporting a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
These examples are from corpora and from sources on the web. Any views while in the illustrations usually do not signify the impression in the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
水晶的评价标准和高端宝石有所不同。多数高端宝石把颜色放在评价的第一位,而对水晶来说,颜色和净度(水晶行业称作晶体)是近乎同等重要的因素:
Hexagonal �?Characterised by four axes, a few of which might be equal in size and intersect at a hundred and twenty levels, using a fourth axis perpendicular to one other 3.
13Nearly all personal more info computers comprise a quartz-crystal clock to manage their operation.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。
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。
There are two such achievable periodic preparations. In each, the primary layer has the atoms packed into a airplane-triangular lattice in which every atom has 6 fast neighbours. Figure two demonstrates this arrangement to the atoms labeled A
水晶形成后由于外力作用或某种人为原因使水晶产生大的裂隙或裂纹,这种裂纹有大有小,对水晶的影响也有大小之分。
《古今小说·李公子救蛇获称心》:“器皿皆是玻璃、水晶、琥珀、玛瑙为之,曲尽巧妙,非人间所有。”
This crystal framework is liable for the unique Actual physical and chemical Houses of sodium chloride, which includes its large melting stage, electrical conductivity, and ability to sort ionic bonds quickly.