Crystal Fundamentals Explained
Crystal Fundamentals Explained
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天然的水晶一般都会有絮状(绵绺),也就是大家俗称的瑕疵,这是液体水落石出和二氧化碳的小孔穴,而人工合成的水晶就不会有这样的特征。
Bismuth (Bi) seems to generally be a metallic, but the amount of electrons available for electrical conduction is similar to that of semiconductors. The truth is, bismuth is called a semimetal. Molecular solids tend to be crystals shaped from molecules or polymers. They are often insulating, semiconducting, or metallic, according to the variety of molecules in the crystal. New molecules are continually being synthesized, and a lot of are created into crystals. The volume of various crystals is big.
一般而言,紫晶和黄晶是水晶中价值较高的品种。两者进一步的分级是据其颜色的深浅,颜色较深的为A级,稍浅的为B级。一般颜色较深的价格高,但要以不深暗为标准。颜色包括两种,一种是水晶本身的颜色,另一种是内部包裹体的颜色。水晶本身的颜色要艳丽、纯正,分布要均匀,不能太深或太浅,如澳州玉、蓝玉髓、紫晶、黄水晶,其价格就高。无色的水晶内含包裹体的颜色艳丽,其价格也高,如钛晶、绿幽灵、红兔毛。紫水晶一般以稍有云状物、颜色深紫、晶体通透的为上品。
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�?”
看抛光:抛光的好坏直接影响到水晶制品的身价。抛光分为软抛光与硬抛光。
, has a similar structure, but There are 2 options for choosing the holes the atoms will occupy. The 3rd layer could be placed around the atoms of the first layer, generating an alternate layer sequence A
Incorporate to word listing Add to word listing [ C/U ] transparent rock that appears like ice, or perhaps a piece of it
②固体包裹体:指呈固态相存在包裹体,多因岩浆、热液、变质作用等形成的早期结晶物被水晶捕获而形成。
第三种是“皮景”,因某些其他的矿物与水晶体共生,或由于其他的物质侵蚀而依附于水晶表面,或者是水晶受自然环境的影响,在水晶表面出现蚀象,形成了一些景象或图案,这种景观存在于水晶表面。
看文化:水晶里面的包裹体象形,能与文化、宗教及历史有所牵连的话,价格往往会比水晶本身的价值高出几倍甚至几百倍。
16I opened the box and noticed a piece of crystal snowflake along with a greeting card with "Content Birthday" in 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。
Fig. 1: Schematic of crystal development from setting up blocks made up of a particle Main along with a shell of DNA ligands attached towards the particle surface area.
⑦双色水晶:一种紫色和黄色共存一体的水晶,紫色、黄色之间界限较明显,分别占据晶块的一部分。
crystal Alteration is variable: absent in many crystals, in Some others making dense sericite aggregates which can clearly show some recrystallization effects to supply coarser-grained white mica. In the Cambridge English Corpus The tridymite crystals are rectangular or wedge-shaped and are occasionally arranged in aggregates. Within the Cambridge English Corpus Furthermore, haloarchaeal cells had been embedded inside of salt crystals underneath laboratory ailments and subsequently analysed by light-weight microscopy. In the Cambridge English Corpus The white clouds (typically sparse) were also greatly viewed as remaining composed of little crystals of h2o ice, rather like cirrus within our environment. From the Cambridge English Corpus They may be found in evaporite salt lakes and may be trapped in salt crystals throughout evaporation. Through the Cambridge English Corpus Hence, the cells (organelles and membranes) are destroyed mechanically by ice crystals, bringing about Loss of life by way of mobile lysis. Within the Cambridge English Corpus The crystals ended up used in the first or 2nd orders of reflection. Within the here Cambridge English Corpus Within our 8xperiments, the crystals were cubes that has a foundation location of 8 e mm. In the Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : effect of temperature and pressure.