Crystal Fundamentals Explained
Crystal Fundamentals Explained
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轴性、光性：一轴晶正光性。正交偏光下所看到的一轴晶干涉图是独特的，其黑十字臂未达中心，形成中空的图案，俗称牛眼干涉图。中心部分通常为淡绿色或淡粉色。
Crystals are lovely rock formations that have amazed people for Countless a long time. They may be useful for quite a few various things, not just for decoration. Most of the very first radios at any time invented made use of crystals to transmit the radio waves. Some devices, like quartz watches and laser crystals, use special Qualities and harmonic capabilities of crystals for making remarkably exact measurements and changes.
4Without a crystal ball, It is really difficult to mention wherever we'll be up coming 12 months.不用水晶球预卜未来，我们说不准明年处境如何呀。《牛津词典》
Fig. 7: A template-directed approach can Handle The location of creating blocks on the floor while in the formation of sophisticated structures.
根据美国已经了解的情况，统计局的专家和其他人口统计学家在他们的视野中提供了一个不可抗拒的水晶球。
Sensible Vocabulary: similar words and phrases Glass blower blowpipe bulletproof glass cut glass fibreglass frosted glassware glaze glazed glazier glazing prism prismatic punty Pyrex reglaze unglazed vitreous vitrification vitrify See extra effects » You can also obtain relevant phrases, phrases, and synonyms while in the subject areas:
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：
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Amongst the binary crystals, the simplest buildings to visualize are These with equal quantities of The 2 different types of atoms. The construction of sodium chloride relies over a dice. To construct the lattice, the sodium and chlorine atoms are placed on alternate corners of the cube, and the composition is recurring (Determine click here 3B).
颜色：无色，浅至深的紫色，浅黄、中至深黄色，浅至深褐、棕色，绿至黄绿色，浅至中粉红。
地质学家目前为止对晶洞形成还没有广泛认同的理论，但相信晶洞可以在任何埋藏的空腔内形成。这些空腔可以是火成岩中的气泡、树根下的空穴，甚至动物挖的地洞。经过漫长时间，空腔的外壁变硬，溶解的矽酸盐或方解石沉积到内壁。再经过漫长的时间，缓慢渗入的矿物使得晶体在空腔内部结晶。
Crystal Lattices There are actually seven systems of crystal buildings, which might be also known as lattices or Area lattices:
14For case in point, Now we have Quartz crystal clocks and watches correct to inside of a person minute a calendar year.例如，我们使用的每年误差不超过one分钟的石英水晶钟表和手表。
21You all know the way when you have a crystal prism and pass a beam of sunlight by means of it, you receive a spectrum, which seems like a continuous band of rainbow colours.