This idea applies Similarly in a single, two, and three-dimensional Areas. The entire crystal lattice may be produced by repeatedly reproducing the sample of the device cell in all Instructions.

⒉棉、云雾或渣状包裹体、杂质在透明水晶内部有雾蒙蒙的现象或是感觉里面像有棉絮状、渣状物质一样的包裹体，这些包裹体的存在，影响水晶的整体美观。还有的水晶内局部含有黑斑或其他颜色的斑状物质，与水晶整体不协调，被视为水晶的杂质，有这种杂质的水晶是次品。

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。

Fig. seven: A template-directed strategy can Command The position of setting up blocks with a area within the formation of sophisticated constructions.

条痕颜色：无色。矿物粉末的颜色叫条痕。它可以消除假色，减弱他色，保留自色，是比矿物的颜色更为可靠的鉴定特征之一。

, has the same construction, but There's two selections for choosing the holes that the atoms will occupy. The 3rd layer is often positioned over the atoms of the primary layer, making an alternate layer sequence A

对任何宝石来说，颜色都是非常重要的，水晶也不例外。如果是水晶晶体是有颜色的，如粉水晶、黄水晶、紫水晶等，其颜色评价的最高标准则是明艳动人，不带有灰色、黑色、褐色等其他色调。如粉水晶，颜色以粉红为佳；紫水晶，要求颜色为鲜紫，纯净不发黑；黄水晶，要求颜色不含绿色、柠檬色调，以金橘色为佳。对于发晶来说，晶体的颜色也是很重要的。相同发丝的金发晶，晶体完全无色（白水晶）和晶体略偏茶色，肉眼的视觉观感也是有差别的，所以前者的价格会高于后者。

26Some of the best ingesting glasses are constructed from lead crystal.一些最精致的酒杯是用铅晶质玻璃制成的。《柯林斯英汉双解大词典》

本词条由中国科学院大学地球与行星科学学院、中国科学院地质与地球物理研究所 参与编辑并审核，经科普中国·科学百科认�?。

多色�?无色水晶没有多色性。有色水晶有弱到强的多色�?表现为体色的不同深浅。

say cheese a thing that someone that is getting a photograph of you informs you to convey so that your mouth can make The form of the smile

Crystallography would be the study of crystals, and it bargains with anything from perfect geometric designs to seemingly random conglomerations of particles and minerals.

压电性：水晶晶体受到压力时会产生电荷；反之，受到电压作用时，晶体会产生频率很高的振动。水晶具有可使压力与电荷相互转移的性能，称压电性。

crystal Alteration is variable: absent in lots of crystals, in Many others developing dense sericite aggregates which can exhibit some recrystallization outcomes to supply coarser-grained white mica. With the Cambridge English Corpus The tridymite crystals are rectangular or wedge-formed and are occasionally arranged in aggregates. Within the Cambridge English Corpus On top of that, haloarchaeal cells were being embedded in just salt crystals less than laboratory problems and subsequently analysed by gentle microscopy. Within the Cambridge English Corpus The white clouds (typically sparse) were also broadly thought to be remaining composed of little crystals of water more info ice, rather like cirrus within our environment. From your Cambridge English Corpus They are present in evaporite salt lakes and might be trapped in salt crystals throughout evaporation. From the Cambridge English Corpus Hence, the cells (organelles and membranes) are ruined mechanically by ice crystals, leading to Demise through mobile lysis. Through the Cambridge English Corpus The crystals were Utilized in the 1st or second orders of reflection. In the Cambridge English Corpus Within our 8xperiments, the crystals ended up cubes which has a foundation region of eight e mm. From your Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : influence of temperature and tension.