Not known Details About Crystal
Not known Details About Crystal
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Calcite crystals in many cases are Employed in optical tools, and in many cases the graphite in pencil direct are sheets of crystals that essentially split apart layer by layer to write down. Silica can form silicate crystals that happen to be The premise for quartz, mica, olivine, and a number of other crystals and minerals.
12He tried using again in a number of other cities and succeeded with Crystal Caramels.他又在其他几个城市再次尝试,并成功制出了水晶焦糖。
看做工:水晶制品加工过程分为两种,即磨工和雕工。如水晶项链、手链、耳环等属于研磨品;观音像、内画鼻烟壶等属于雕刻品。
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。
看抛光:抛光的好坏直接影响到水晶制品的身价。抛光分为软抛光与硬抛光。
Monoclinic �?Characterized by three unequal axes, two of which intersect at an oblique angle, when the third is perpendicular on the plane of the other two.
30Three days went previous, and I was astonished to see it all over again: the many openings had been sewed up by slender and white thread they usually seemed similar to the ice crystal on Winter season's branches inside the north.
②固体包裹体:指呈固态相存在包裹体,多因岩浆、热液、变质作用等形成的早期结晶物被水晶捕获而形成。
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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。
Through the Cambridge English Corpus We are saying the chain topology while in the high w area functions as the proverbial ' scratch-on-theglass ' essential inside the natural chemistry laboratory to generate crystals. In the Cambridge English Corpus Constant-tension and temperature molecular-dynamics simulations of crystals of your lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. Within the Cambridge English Corpus In combination with these, dust particles are noticed in small-temperature plasmas, like All read more those Utilized in plasma processing and plasma crystals. Through the Cambridge English Corpus The ultimate Element of the ebook focuses on peculiarities of strongly coupled dusty plasmas, like the formation of dust crystals and affiliated interesting forces. With the Cambridge English Corpus Comprehensive characterization of damage threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. Within the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or even more irregular, Main morphologies were not observed. Through the Cambridge English Corpus See all samples of crystal These examples are from corpora and from resources on the web. Any thoughts inside the illustrations don't signify the impression of the Cambridge Dictionary editors or of Cambridge College Push or its licensors.
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
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。
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。