天然的水晶一般都会有絮状(绵绺),也就是大家俗称的瑕疵,这是液体水落石出和二氧化碳的小孔穴,而人工合成的水晶就不会有这样的特征。
the solid condition of many basic substances, that have an everyday condition and surfaces organized in very similar styles
景观水晶,就是包裹体组成各种造型特异的水晶,有的似山水,有的似人物,有些像文字,有些像动物,植物,器物等等。
看原料:选料精良的水晶制品,应看不到胶口及棉絮;质地纯净、光润、晶莹为好。
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。
They will inevitably make a awesome little uniform cluster of atoms, This is often the process of rising crystals. The greater they can arrive together, the more of a development is going to be seen into the bare eye. Experts can identify what mineral They may be thinking about by how the crystals form.
水晶内部有多种矿物包裹体,形成的各种景观可以肉眼观测,这样的水晶就是包裹体水晶观赏石。由于水晶本身就是宝石,因此人们称誉包裹体水晶为“宝石级的观赏石”。包裹体水晶观赏石都具有独特性,具有极高欣赏和收藏价值。
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。
Crystals are sometimes viewed as anything of immense beauty, and they are generally used with diamonds or other stones to help make items of jewelry. Nearly all crystals now are guy-built in laboratories.
crystal The freshly crystallized quartz grains are characterised by elongate crystals oriented oblique towards the shear band margins, defining an average grain-shape foliation. 来自 Cambridge English Corpus We are saying the chain topology from the large w area acts given that the proverbial ' scratch-on-theglass ' essential inside the natural and organic chemistry laboratory to create crystals. 来自 Cambridge English Corpus The age scatter amid the individual crystals may here possibly replicate incorporation of xenocrysts from earlier magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene kinds neutral to pale brown, subhedral to anhedral crystals, from time to time made up of inclusions of plagioclase microlaths and opaque phases.
⑥、丝印:水晶表面附有不同的色料进行效果处理,颜色层面较厚,着力后方可脱落。
正常的水晶在生长时,多可以发现和柱形尖端棱线平行的生长纹(expansion strains)。由于在地底、岩洞中的生长空间多狭窄,尤其在遇到地震时,或地壳变动时,甚至容易遭到其他矿石的挤压,常常会压迫产生不同的「晶面」。还有,当水晶还是在液态状的时候,常常也会包覆着其他的矿石、泥灰一起结晶成长,如金红石(稍后变成发晶)、火山泥灰(稍后变成幻影水晶)等等。所有的这些,都是「自然的一部分」,请不要视为「瑕疵」。
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。
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。