Facts About Crystal Revealed
Facts About Crystal Revealed
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Calcite crystals are often Employed in optical devices, and perhaps the graphite in pencil lead are sheets of crystals that fundamentally crack apart layer by layer to write down. Silica can variety silicate crystals which might be The idea for quartz, mica, olivine, and many other crystals and minerals.
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。
A crystal structure concentrates on how the atoms are organized Within the crystal. Even so, crystallographers are interested in the general condition and sizing in the crystal in addition to its external features. To perform this, they should know about the crystal process.
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�?”
这种水晶观赏石特指水晶晶簇，它是众多单晶体集中生长在一起的晶体组合。晶簇以其晶莹剔透、独特造型而享誉水晶赏石界。
当二氧化硅结晶完美时就是水晶；结晶不完美的就是石英：二氧化硅胶化脱水后就是玛瑙；二氧化硅含水的胶体凝固后就成为蛋白石；二氧化硅晶粒小于几微米时，就组成玉髓、燧石、次生石英岩。
石英：《广雅》称水晶叫石英，色白如莹者又叫白。为附的异形字。司马相如《子虚赋》就�?�?雌黄�?�?之句。苏林解释：�?�?，白石英�?”。
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Many crystals read more behave like butter in that they're tough at reduced temperatures but gentle at bigger temperatures. These are known as solids in the slightest degree temperatures underneath their melting position. A possible definition of a reliable is an object that retains its condition if remaining undisturbed. The pertinent issue is just how long the article keeps its shape. A really viscous fluid retains its condition for one hour but not a year. A reliable need to hold its shape more time than that.
幽灵水晶，分绿幽灵，红幽灵，白幽灵等，主要组成为绿泥石，其中绿幽灵属于珍贵品种。
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”。
水晶的价值还与块体大小有关，同样的颜色和净度级别，块越大越难得。有时候质量级别虽然低一些，但块体够大，也可能价格高于高级别的小晶体
This Overview chronicles in excess of 20 years of investigate into making a genetic code for crystal engineering. As an alternative to directing Organic procedures, this code utilizes artificial varieties of DNA to programme the assembly of nanoparticles and microparticles into 1D, second and 3D crystalline architectures, in which nearly every element of the resultant buildings is often systematically controlled. Inside this conceptual framework, the structural and useful improvements are explained in an effort to determine the present degree of sophistication and to predict long term Instructions with the System.
对于紫水晶黄水晶这样的单色水晶，通常要观察它的二色性，即使是最顶级的紫水晶黄水晶也是有色差的，通过这个方法可以鉴别是否加色。