5 SIMPLE TECHNIQUES FOR CRYSTAL

5 Simple Techniques For Crystal

5 Simple Techniques For Crystal

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This idea applies Similarly in one, two, and 3-dimensional spaces. Your entire crystal lattice could be produced by continuously reproducing the pattern on the device mobile in all directions.

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。

结晶的形状非常细小,需要用显微镜才能看得清楚,外观上看起来是平滑、块状。常见最多的是各式玛瑙

看原料:选料精良的水晶制品,应看不到胶口及棉絮;质地纯净、光润、晶莹为好。

C2 [ U ] transparent glass of pretty superior quality, typically with its surface area Reduce into delicate patterns:

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There exists a comparable directive about crystal glass which differentiates between total lead crystal, direct crystal and crystal.

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。

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”。

隐晶类水晶外观是一块块的,不是成六角水晶簇状,但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶,因为结晶的体积极为细小,需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑,因为结晶之间有“水化硅石”填补,玛瑙便属于此类。

《古今小说·李公子救蛇获称心》:“器皿皆是玻璃、水晶、琥珀、玛瑙为之,曲尽巧妙,非人间所有。”

⑥白色的包裹体有蚀变的绿泥石、云母、愈合裂隙、水晶、方解石、透闪石等。

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