Crystal Fundamentals Explained
Crystal Fundamentals Explained
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轴性、光性：一轴晶正光性。正交偏光下所看到的一轴晶干涉图是独特的，其黑十字臂未达中心，形成中空的图案，俗称牛眼干涉图。中心部分通常为淡绿色或淡粉色。
12He attempted once more in quite a few other metropolitan areas and succeeded with Crystal Caramels.他又在其他几个城市再次尝试，并成功制出了水晶焦糖。
晶及其石英岩类玉石是中低档宝玉石，虽比不上钻石、红蓝宝石的高贵，但在加工中如果构思巧妙而且加工精细，同样具有很高的价值。如中国传统的玛瑙“虾盘”、“龙盘”、“水漫金山�?水胆玛瑙摆件)都被誉为国家级宝玉石。
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Fig. 4: Building blocks with different designs and area chemistries immediate the formation of distinct crystal symmetries.
, has a similar composition, but there are two possibilities for choosing the holes that the atoms will occupy. The 3rd layer is usually positioned over the atoms of the very first layer, producing an alternate layer sequence A
时尚的收藏爱好者喜欢收藏天然水晶，却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶：
26Some of the finest ingesting glasses are produced 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》
水晶包裹体丰富多彩，从气体、液体到各种矿物质，甚至宝石，均可被包含于水晶内，各种包裹体所形成的景象更是变化万千。按照包裹体的内容，常把包裹体水晶分为一下八类：
[ C/U ] transparent glass of top quality, normally with its surface Reduce into patterns that replicate gentle
say cheese something that somebody who is having a photograph of you informs you to mention so that your mouth helps make The form of a smile
Crystallography is the analyze of crystals, and it deals with anything from great geometric shapes to seemingly random conglomerations of particles and minerals.
This Overview chronicles around twenty years of investigate into making a genetic code for crystal engineering. Instead of directing Organic procedures, this code employs artificial types of DNA to programme the assembly of nanoparticles and microparticles into 1D, 2nd and 3D crystalline architectures, in which nearly each aspect of the resultant structures can be systematically click here controlled. Within just this conceptual framework, the structural and functional advances are described in an effort to determine the current standard of sophistication also to forecast upcoming Instructions on the platform.
Wise Vocabulary: associated words and phrases and phrases Geology: mineralogy beneficiation crystalline deposit gemologist gemology gold dust graphite idiomorphic intercrystalline like gold dust idiom magnesium mineral nugget pyrite quasicrystal seam silicon unmined vermiculite vulcanicity See extra final results » It's also possible to come across linked words, phrases, and synonyms inside the matters: