The 5-Second Trick For Crystal
The 5-Second Trick For Crystal
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8Where do we get this magic wand and crystal ball?我们到哪里获得这种魔棒和水晶玻璃球？
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。
看做工：水晶制品加工过程分为两种，即磨工和雕工。如水晶项链、手链、耳环等属于研磨品；观音像、内画鼻烟壶等属于雕刻品。
Increase to term checklist Increase to term checklist C2 [ U ] clear glass of incredibly high quality, generally with its surface Lower into sensitive styles
There are also numerous elements that resemble crystals but are literally polycrystals. Polycrystals variety when microscopic crystals fuse with each other to variety a reliable. These components never consist of requested lattices.
发晶，包括钛晶，铜顺发，绿发晶，黑发晶，银发晶，杂色发晶，其中钛晶最珍贵，少数钛晶价值可比钻石，红宝石和蓝宝石以及祖母绿。
⑩、雷射内雕：以计算机辅助激光设备在水晶对象中进行三维图案的成型，艺术效果好，可以任意表达各类图案，图形，达到逼真效果
There is a identical directive about crystal glass which differentiates concerning full lead crystal, guide crystal and crystal.
水晶常以晶簇、晶洞形式产出，其中水晶洞一般存在于由火山喷发而形成的巨厚熔岩流层的火成岩与玄武岩中。火山喷发时所含的气体或热水溶蚀等作用导致岩层中出现大量的孔隙，当富含硅质矿物的流体进入较薄的熔岩孔隙中，且温、压条件合适时将结晶沉淀出水晶等矿物。
广义的包裹体是指宝石内部含有的与主晶宝石化学成分、物理性质等不同的物质。
用手去触摸水晶，天然水晶通常温度要比人造水晶的要凉的多；用眼观察，天然水晶通常有棉絮状的包裹体，这个是人造水晶所没有的。
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（development 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」。
The construction on the sodium atoms by yourself, or perhaps the chlorine atoms by yourself, is fcc and defines the device mobile. The sodium chloride construction Therefore is built up of two interpenetrating fcc lattices. The cesium chloride lattice (Determine 3A) is predicated about the bcc framework; just about every other atom is cesium or chlorine. In such a case, the device mobile is often a cube. The 3rd essential structure for AB
The C60 molecules, check here also known as buckyballs, are quite powerful and Pretty much incompressible. Crystals are fashioned these types of that the balls are organized within an fcc lattice having a one particular-nanometre spacing between the centres of adjacent balls. The related C70 molecule has the shape of a rugby ball; C70 molecules also variety an fcc crystal when stacked with each other. The solid fullerenes type molecular crystals, with weak binding—provided by van der Waals interactions—in between the molecules.