Crystal Things To Know Before You Buy
Crystal Things To Know Before You Buy
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This concept applies equally in a single, two, and a few-dimensional Areas. Your entire crystal lattice might be manufactured by repeatedly reproducing the sample of the unit cell in all Instructions.
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
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In addition there are several materials that resemble crystals but are actually polycrystals. Polycrystals sort when microscopic crystals fuse with each other to form a reliable. These supplies will not encompass ordered lattices.
Monoclinic �?Characterised by 3 unequal axes, two of which intersect at an oblique angle, while the 3rd is perpendicular to your plane of the other two.
⑦、镀彩：运用类似电镀的手法在水晶表面以不同的色彩，层面较薄，经摩擦可划伤�?；出现划痕，由于镀彩经常位于底部，因此在镀彩底部经常采用其它对象附着，如生肖文镇。
Crystals can be developed less than moderate disorders from all ninety two By natural means developing things apart from helium, and helium is usually crystallized at low temperatures by making use of twenty five atmospheres of force.
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crystal The newly crystallized quartz grains are characterised by elongate crystals oriented oblique towards the shear band margins, defining a typical grain-shape foliation. 来自 Cambridge English Corpus We say the chain topology from the significant w region functions as being the proverbial ' scratch-on-theglass ' wanted while in the natural and organic chemistry laboratory to generate crystals. 来自 Cambridge English Corpus The age scatter among the the individual crystals may possibly mirror incorporation of xenocrysts from earlier magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene varieties neutral to pale brown, subhedral to anhedral crystals, at times made up check here of inclusions of plagioclase microlaths and opaque phases.
Browse cryptosporidiosis cryptosporidium cryptozoologist cryptozoology crystal crystal ball crystal obvious idiom crystal lattice BETA copyright #randomImageQuizHook.filename #randomImageQuizHook.isQuiz Test your vocabulary with our enjoyment image quizzes
You will discover only a few unique device-mobile designs, so many various crystals share only one unit-cell form. A vital attribute of a unit cell is the number of atoms it has. The full number of atoms in your complete crystal would be the quantity in Every single cell multiplied by the quantity of unit cells. Copper and aluminum (Al) Every single have just one atom for each device mobile, while zinc (Zn) and sodium chloride have two. Most crystals have just a few atoms for each unit mobile, but there are several exceptions. Crystals of polymers, such as, have A huge number of atoms in Each and every unit cell.
在透明的水晶中，隐裂纹呈亮晶晶的片状，有时还会有晕彩效应。这些裂纹是水晶在生长过程中，遇到外力挤压而在内部产生的一些隐形裂纹，隐裂纹在芙蓉石、紫水晶、白水晶球及白水晶柱中都很常见。有的裂纹后来被物质填充，形成愈合的裂纹，也就是原来的裂纹又长住了。这种裂纹对水晶的影响相对要小一些。
Binary crystals are found in many buildings. Some pairs of aspects sort multiple construction. At place temperature, cadmium sulfide may well crystallize possibly within the zinc blende or wurtzite construction. Alumina also has two probable buildings at place temperature, α-alumina (corundum) and β-alumina. Other binary crystals show distinct structures at diverse temperatures. Among the most complicated crystals are those of silicon dioxide (SiO2), that has seven unique structures at various temperatures and pressures; the most common of these structures is quartz.