Crystal Things To Know Before You Buy
Crystal Things To Know Before You Buy
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This idea applies equally in a single, two, and a few-dimensional spaces. Your complete crystal lattice can be manufactured by repeatedly reproducing the sample on the device cell in all directions.
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天然水晶是不可再生资源，随着开发的深入，天然水晶存量已越来越少，为了可持续发展，东海县政府早就制定了保护本地资源，鼓励开发海外水晶资源的政策，但是，海外资源也越来越少，很多国家都提高了开采和出口天然水晶的门槛，进入东海市场的外国水晶价格连年暴涨，其中观赏水晶比普通水晶涨价更快。
第一种是“全包裹体”，在水晶结晶的时候把这些物质包裹在晶体里面，这类包裹体所形成的各种景象，大多保持了水晶结晶时的原状，也就是说保存了几亿年的原状，极少受到自然环境的影响。
2She was wearing a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
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。
解理：无解理。所谓解理是指矿物被打击时，沿一定方向有规则地裂开形成光滑平面的性质。根据解理的程度可以分为五类：极完全解理、完全解理、中等解理、不完全解理和无解理，水晶属于无解理。
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第三种是“皮景”，因某些其他的矿物与水晶体共生，或由于其他的物质侵蚀而依附于水晶表面，或者是水晶受自然环境的影响，在水晶表面出现蚀象，形成了一些景象或图案，这种景观存在于水晶表面。
crystal The recently crystallized quartz grains are characterised by elongate crystals oriented oblique into the shear band margins, defining a normal grain-form foliation. 来自 Cambridge English Corpus We are saying the chain topology in the high w region functions as being the proverbial ' scratch-on-theglass ' wanted inside the organic and natural chemistry laboratory to create crystals. 来自 Cambridge English Corpus The age scatter between the person crystals may well mirror incorporation of xenocrysts from earlier magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene types neutral to pale brown, subhedral to anhedral crystals, often made up of inclusions of plagioclase microlaths and opaque phases.
All crystal ball crystal crystal clear copyright liquid crystal crystal lattice crystal composition liquid crystal display See all meanings Idioms and phrases crystal clear idiom
Crystal Lattices You can find seven units of crystal buildings, which can be also referred to as lattices or House lattices:
The structure of your sodium atoms by itself, or maybe the chlorine here atoms by yourself, is fcc and defines the unit mobile. The sodium chloride construction thus is created up of two interpenetrating fcc lattices. The cesium chloride lattice (Figure 3A) relies over the bcc structure; every other atom is cesium or chlorine. In such cases, the unit mobile is really a dice. The third critical framework for AB
对于紫水晶黄水晶这样的单色水晶，通常要观察它的二色性，即使是最顶级的紫水晶黄水晶也是有色差的，通过这个方法可以鉴别是否加色。