看颜色：即使在同一种类的水晶中，它的不同部位的纹理、色泽也各式各有千秋。属于单色的，要色度均匀；在同一块水晶上有深浅的，则要求其色调纹路美观大方。
12He tried all over again in quite a few other metropolitan areas and succeeded with Crystal Caramels.他又在其他几个城市再次尝试，并成功制出了水晶焦糖。
结晶的形状非常细小，需要用显微镜才能看得清楚，外观上看起来是平滑、块状。常见最多的是各式玛瑙
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。
Fig. four: Developing blocks with diverse designs and floor chemistries immediate the development of distinct crystal symmetries.
Not all crystals kind in h2o, but nearly all crystals sort precisely the same way, atoms arrive with each other and become a uniformed cluster. The process normally takes as small as a few days to maybe a thousand yrs. Pure crystals that originate from the Earth kind the same way.
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There is a similar directive about crystal glass which differentiates involving entire guide crystal, lead crystal and crystal.
水晶包裹体丰富多彩，从气体、液体到各种矿物质，甚至宝石，均可被包含于水晶内，各种包裹体所形成的景象更是变化万千。按照包裹体的内容，常把包裹体水晶分为一下八类：
[ C/U ] transparent glass of top of the range, get more info normally with its area Reduce into designs that mirror gentle
被主体水晶所捕获的包裹体。原生包裹体通常为固相，形态较规则。水晶中典型的原成包裹体有金红石、电气石、黄铁矿等，也会见到岩石碎屑或集合体。
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（advancement traces）。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」。
This Critique chronicles around two decades of investigation into developing a genetic code for crystal engineering. Rather than directing biological procedures, this code utilizes artificial types of DNA to programme the assembly of nanoparticles and microparticles into 1D, 2nd and 3D crystalline architectures, in which almost every single element of the resultant structures is usually systematically managed. Within this conceptual framework, the structural and purposeful advances are described in order to determine the existing standard of sophistication and to forecast long run Instructions with the platform.
Tetragonal �?Characterised by three mutually perpendicular axes, two of that happen to be equal in length, when the 3rd is longer or shorter and perpendicular to the other two.