New Step by Step Map For Crystal
New Step by Step Map For Crystal
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看颜色：即使在同一种类的水晶中，它的不同部位的纹理、色泽也各式各有千秋。属于单色的，要色度均匀；在同一块水晶上有深浅的，则要求其色调纹路美观大方。
the sound condition of numerous very simple substances, which have a regular form and surfaces organized in related patterns
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
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�?”
. These four structures comprise many of the binary crystals with equivalent quantities of cations and anions.
发晶，包括钛晶，铜顺发，绿发晶，黑发晶，银发晶，杂色发晶，其中钛晶最珍贵，少数钛晶价值可比钻石，红宝石和蓝宝石以及祖母绿。
水晶内部有多种矿物包裹体，形成的各种景观可以肉眼观测，这样的水晶就是包裹体水晶观赏石。由于水晶本身就是宝石，因此人们称誉包裹体水晶为“宝石级的观赏石”。包裹体水晶观赏石都具有独特性，具有极高欣赏和收藏价值。
Hexagonal �?Characterized by four axes, three of that happen to be equal in size and intersect at a hundred and twenty degrees, that has a fourth axis perpendicular to the opposite a few.
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。
22Working from what The usa currently appreciates about itself, the bureau's gurus as well as other demographers give an irresistible, if clouded, crystal ball amongst their visions.
The essential models of solids are both atoms or atoms which have mixed into molecules. The electrons of the atom move in orbits that variety a shell construction across the nucleus. The shells are stuffed in a systematic purchase, with each shell accommodating only a small variety of electrons. Different atoms have distinct quantities of electrons, that are distributed in the attribute electronic framework of filled and partially filled shells.
The arrangement of the atom’s electrons establishes its chemical Attributes. The Houses of solids are frequently predictable with more info the properties in their constituent atoms and molecules, and different shell constructions of atoms are therefore chargeable for the diversity of solids.
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One more kind of crystalline carbon is based over a molecule with 60 carbon atoms called buckminsterfullerene (C60). The molecular shape is spherical. Each carbon is bonded to a few neighbours, as in graphite, as well as spherical form is realized by a combination of 12 rings with 5 sides and twenty rings with six sides. Very similar constructions were to start with visualized with the American architect R. Buckminster Fuller for geodesic domes.