5 Essential Elements For Crystal

5 Essential Elements For Crystal

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诗中“胜美玉”，“过冰清”，写出水晶的质地美，而“亦欲应时明”则描绘出水晶充满灵性的动态美，耐人寻味。罗维是有独特眼光，懂得水晶真谛，第一个称赞水晶超过美玉的伟大诗人。他的认识已被千年之后的科学理论所证实；以水晶为直接吟咏对象的诗篇还有：

the good condition of numerous uncomplicated substances, which have a regular shape and surfaces arranged in related patterns

水晶文化历史悠久，古人曾赋予它一串极富美感的雅称：水玉、水精、水碧、石英等。

Tetragonal: These crystals variety prisms and double pyramids. The framework is sort of a cubic crystal, except a person axis is extended than one other.

Fig. four: Developing blocks with diverse shapes and floor chemistries direct the development of distinct crystal symmetries.

无色水晶与无色长石因折射率和密度十分接近故较难区分。主要方法是放大检查。长石有两组极完全解理，显微镜下可见两组解理相交而成的“娱蛤状”包裹体或细直的纹理，而水晶则无解理发育，仅有时可见断续不规则的裂理。

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。

发晶：无色、浅黄、浅褐等，可因含金红石常呈金黄、褐红等色，含电气石常呈灰黑色；含阳起石而呈灰绿色。

水晶是有成色等级之分，影响水晶价位的因素很多，不像钻石以4C就可以判定，所以大家要多听多看多比较才能真正辨别出来。一般的标准是水晶石越大越好，越透越好，颜色越娇嫩越好，形状越典型越好。不过最重要还是自己喜欢，而选购时辨识真伪的方法大致有下列几种：

crystal The recently crystallized quartz grains are characterised by elongate crystals oriented oblique to your shear band margins, defining an average grain-form foliation. 来自 Cambridge English Corpus We are saying the chain topology from the substantial w area acts given that the proverbial ' scratch-on-theglass ' wanted during the organic and natural chemistry laboratory for making crystals. 来自 Cambridge English Corpus The age scatter between the individual crystals might mirror incorporation of xenocrysts from previously magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene sorts neutral to pale brown, subhedral to anhedral crystals, often containing inclusions of plagioclase microlaths and opaque phases.

All crystal ball crystal very clear copyright liquid crystal crystal lattice crystal composition liquid crystal Screen See all click here meanings Idioms and phrases crystal very clear idiom

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（growth lines）。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」。

Crystals are categorized normally types, including insulators, metals, semiconductors, and molecular solids. A single crystal of the insulator is frequently clear and resembles a bit of glass. Metals are shiny Except if they have got rusted. Semiconductors are occasionally shiny and from time to time clear but are hardly ever rusty. Lots of crystals might be labeled as one variety of strong, while some have intermediate conduct. Cadmium sulfide (CdS) could be well prepared in pure form and is a wonderful insulator; when impurities are included to cadmium sulfide, it becomes a fascinating semiconductor.

Fig. five: The opportunity to recognize outlined crystal patterns is depending on the symmetry engineering approach.