The 5-Second Trick For Crystal
The 5-Second Trick For Crystal
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17These rings are indicative on the crystal composition of nickel and will be spelled out only by invoking wavelike properties of sunshine.这些光圈表明了了镍的晶体结构，而且只能通过光线中波的特征来解释。
杂质、裂纹越少越好。质地好的水晶制品，应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点，则属于次品。
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
We have penned about over three hundred stones inside the mineral kingdom! Read about Each and every stone's exceptional origin, historical past, and energies underneath.
There's also numerous products that resemble crystals but are literally polycrystals. Polycrystals variety when microscopic crystals fuse together to kind a stable. These products do not encompass purchased lattices.
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。
30Three days went earlier, and I was amazed to view it once more: all the openings were sewed up by slender and white thread and they seemed like the ice crystal on winter's branches within the north.
市场上有很多人把熔炼水晶也叫做合成水晶，那是不准确的，一般都是以水晶废料为原料在高温高压下熔炼出来的，而不是结晶成的，不具备水晶的晶体特性，所以不能把熔炼水晶与合成水晶混为一谈；但是熔炼水晶耐高温，用优质二氧化硅熔炼成的熔炼水晶可以做成实用产品比如水晶杯、烤盘、茶具等，实际上一代伟人毛泽东主席的水晶棺就是选用东海优质水晶熔炼而成的。
Crystals will often be seen as some thing of immense attractiveness, and so they are commonly made use of with diamonds or other stones to help make items of jewelry. Nearly all crystals now are person-designed in laboratories.
crystal The freshly crystallized quartz grains are characterized by elongate crystals oriented oblique for the shear band margins, defining a normal grain-condition foliation. 来自 Cambridge English Corpus We are saying the chain topology while in the significant w area functions as being the proverbial ' scratch-on-theglass ' required from the natural chemistry laboratory to generate crystals. 来自 Cambridge English Corpus The age click here scatter among the the individual crystals could reflect incorporation of xenocrysts from previously magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene varieties neutral to pale brown, subhedral to anhedral crystals, sometimes made up of inclusions of plagioclase microlaths and opaque phases.
say cheese something that a person who is getting a photograph of you informs you to convey so that your mouth will make the shape of a smile
Fig. one: Schematic of crystal formation from developing blocks composed of a particle Main along with a shell of DNA ligands attached towards the particle surface area.
玉石纹理如果能形成美丽的花纹、图案，其价格就高，如玛瑙内红白相间的色带有规律地排列，形成缠丝玛瑙时，碧玉中的不均匀颜色形成一种风景图案时，材料的价值将提高。当水晶内包裹体形成美丽的图案时，如幽灵水晶、风景水晶，或者针状包裹体呈束状排列时，其价值都高于普通的水晶。图案越美观、越有意境越好。
The C60 molecules, also referred to as buckyballs, are very solid and almost incompressible. Crystals are fashioned this sort of which the balls are organized in an fcc lattice using a a person-nanometre spacing between the centres of adjacent balls. The very similar C70 molecule has The form of the rugby ball; C70 molecules also variety an fcc crystal when stacked collectively. The good fullerenes variety molecular crystals, with weak binding—furnished by van der Waals interactions—in between the molecules.