Calcite crystals in many cases are used in optical machines, and also the graphite in pencil lead are sheets of crystals that fundamentally break aside layer by layer to write down. Silica can variety silicate crystals which can be The idea for quartz, mica, olivine, and many other crystals and minerals.
23Sometimes, even so, the crystal method of the silicate inclusions is observed to resemble a lot more intently The interior construction of diamond than that of other silicate minerals.然而，有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。
对水晶进行评价主要依据其颜色、透明度、大小、净度、特殊图案及是否有光学效应等方面。以颜色纯正，浓度较高，内部无瑕为好。种类上紫晶最贵，其次为黄晶、烟晶、无色水晶和芙蓉石。有特殊光学效应的水晶的价格更高。
水碧：《山海经》中，水晶又被称作水碧： �?又南三百里，日耿山，无草木，多水碧 �?，郭璞注�?�?亦水玉类 ”。这种称谓常被文人所引用，晋代郭景纯《璞江赋》道�?�?鬼，水碧�?�?。水晶又有人称它叫玉瑛。《符瑞图》载�?美石似玉，水精谓之玉瑛也�?”
《全唐诗》卷七八五载《白雪歌》：“鸟啄冰潭玉镜开，风敲檐溜水晶折。”
Learn the way the shape of your crystals determine different minerals into familiesMinerals crystallize Based on certainly one of seven motifs, referred to as crystal devices.
30Three days went previous, and I was shocked to discover it once again: each of the openings ended up sewed up by thin and white thread and so they seemed similar to the ice crystal on winter's branches in the north.
11I meticulously opened the deal and found a crystal bell inside.我小心地打开包裹，发现里面有一个水晶钟。
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�?。
22Working from what The us already knows about itself, the bureau's professionals together with other demographers offer you an irresistible, if clouded, crystal ball between their visions.
16I opened the box and observed a piece of crystal snowflake as well as a greeting card with "Happy Birthday" within the blank paper.我打开盒子并看见在白纸中有一片水晶雪花和一张写着“生日快乐”的贺卡。
Crystal Lattices You'll find seven systems of crystal buildings, which are also Crystal referred to as lattices or Room lattices:
⑨、喷砂：立体感弱，较平整，无凹凸感，机器雕刻文字、图形等后进行效果处理。成本低制作快。
水晶观赏石在形态、质地、内部特征等方面往往十分奇异。大自然有无限风光，都可以在包裹体水晶种找到缩影。