The smart Trick of Crystal That No One is Discussing
The smart Trick of Crystal That No One is Discussing
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17These rings are indicative of the crystal composition of nickel and can be discussed only by invoking wavelike Attributes of sunshine.这些光圈表明了了镍的晶体结构，而且只能通过光线中波的特征来解释。
水晶原石观赏石充分体现了天然水晶的本质，经过抛光的水晶原石观赏石，玲珑剔透、晶莹璀璨，独具匠心的设计，恰到好处地显露出水晶的魅力。如果您想单纯的欣赏水晶，水晶原石观赏石是你的不二之选，给人一种返璞归真的感觉。
天然水晶是不可再生资源，随着开发的深入，天然水晶存量已越来越少，为了可持续发展，东海县政府早就制定了保护本地资源，鼓励开发海外水晶资源的政策，但是，海外资源也越来越少，很多国家都提高了开采和出口天然水晶的门槛，进入东海市场的外国水晶价格连年暴涨，其中观赏水晶比普通水晶涨价更快。
Most solid resources present in nature exist in polycrystalline type as opposed to as a single crystal. They are actually composed of many grains (modest crystals) packed collectively to fill all space. Just about every unique grain has a distinct orientation than its neighbours. Whilst extended-array purchase exists within a person grain, at the boundary between grains, the buying adjustments way. A standard piece of iron or copper (Cu) is polycrystalline.
Additionally, there are quite a few products that resemble crystals but are actually polycrystals. Polycrystals form when microscopic crystals fuse collectively to variety a stable. These materials never consist of requested lattices.
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Include to phrase checklist Insert to word list [ C/U ] clear rock that looks like ice, or even a piece of it
损伤是指水晶由于加工或不小心摔掉、碰撞等原因，人为造成的损坏。它可以是破口，也可以是凹坑等。
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幽灵水晶，分绿幽灵，红幽灵，白幽灵等，主要组成为绿泥石，其中绿幽灵属于珍贵品种。
看孔眼：对于缀穿水晶制品（如项链、手链、佛珠），要看孔眼是否平直，孔的粗细是否均匀，有无细小裂纹。孔壁必须清澈透明，无“白痕”。
The sodium chloride crystal lattice is characterised by the close packing with the good sodium ions and destructive chloride ions. Each individual sodium ion is surrounded by 6 chloride ions, more info and every chloride ion is surrounded by 6 sodium ions, making a very secure and symmetrical composition.
水玉：中国最古老的称法叫水玉，意谓似水之玉，又说是 �?千年之冰所�?�?。唐代诗人温庭筠《题李处士幽居》写道：�?水玉簪头白角巾，瑶琴寂历拂轻�?”。水玉一词最早频繁出于《山海经》：�?又东三百里，日堂庭之�?…�?多水�?”；�?丹山出焉，东南流注于洛水，其中多水玉 ”；�?逐水出焉，北流注于渭，其中多水玉 ”。司马相如《上林赋》曰�?�?水玉磊河 �?。水晶得名水玉，古人是看�?�?其莹如水，其坚如�?�?的质地。
Fig. five: A chance to comprehend described crystal practices is depending on the symmetry engineering approach.