An Unbiased View of Crystal
An Unbiased View of Crystal
Blog Article
Not all crystals are Similarly crystalline. There are frequently impurities, plus the ionic & covalent involving molecules can produce vastly various constructions outside of a similar content. An excellent illustration of this are diamonds and graphene.
23Sometimes, nonetheless, the crystal type of the silicate inclusions is observed to resemble additional intently The interior structure of diamond than that of other silicate minerals.然而,有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。
4Without a crystal ball, It is not possible to convey where we are going to be next year.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》
③次生包裹体:指主体水晶形成后,由于环境的变化使得主晶周围的一些物质沿裂隙进入到其内部而形成的包裹体。形成的原因有出熔作用、裂隙的结晶化、以及放射性元素破坏的作用等。水晶典型的次生包裹体有胶花水晶中的氧化铁充填物等。
25If you are a Billy Crystal lover, you can expect to enjoy this movie.如果你是比利·克里斯特尔的影迷,你就会喜欢这部电影。《柯林斯英汉双解大词典》
Learn the way The form on the crystals determine different minerals into familiesMinerals crystallize As outlined by amongst seven motifs, often called crystal devices.
Springer Character continues to more info be neutral with regards to jurisdictional statements in posted maps and institutional affiliations.
②固体包裹体:指呈固态相存在包裹体,多因岩浆、热液、变质作用等形成的早期结晶物被水晶捕获而形成。
Meanwhile, to guarantee continued assist, we have been displaying the website without types and JavaScript.
A crystal technique refers to the classification of crystals depending on the geometric arrangement and symmetry in their lattice buildings. There are actually seven most important crystal devices:
天然性是水晶观赏石的基本特性。通常整体造型水晶矿物不饰雕琢就具备很高的观赏价值,但是包裹体水晶观赏石经常需要适当打磨抛光,这样更方便观赏水晶内部的包裹体。
Molecular Crystals: Overall molecules are bonded to each other within an organized way. A superb illustration is a sugar crystal, which is made up of sucrose molecules.
⑤、打孔:是在水晶成品未完成前,根据其所需打孔之尺寸及位置,以钻头加工,如制表件、笔筒、瓶孔等。
Yet another type of crystalline carbon is predicated on the molecule with sixty carbon atoms termed buckminsterfullerene (C60). The molecular form is spherical. Each individual carbon is bonded to a few neighbours, as in graphite, as well as the spherical form is realized by a mix of 12 rings with five sides and twenty rings with six sides. Equivalent constructions ended up 1st visualized with the American architect R. Buckminster Fuller for geodesic domes.