A Simple Key For Crystal Unveiled
A Simple Key For Crystal Unveiled
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水晶表面坑洼的地方，有的深，有的浅，这是水晶在成长过程中自然形成的，并非是人为造成的损伤。缺陷位置本来包有其他矿物晶体，由于包裹体和水晶结合部位的结合力不强，当表面抛光时，矿体脱落，留下空位。这种缺陷在绿幽灵、钛晶、金发晶上都比较常见。
Another entertaining, and delicious, experiment is to form massive crystals applying sugar. By heating sugar with drinking water after which you can permitting this Option evaporate on sticks, you'll be able to sort rock candy from sugar crystals!
Chemical Bonds The types of chemical bonds fashioned in between atoms or groups of atoms in crystals rely upon their size and electronegativity. You will discover 4 groups of crystals as grouped by their bonding:
We have written about around 300 stones during the mineral kingdom! Read about Every single stone's unique origin, heritage, and energies below.
2She was sporting a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
, has exactly the same structure, but there are two possibilities for selecting the holes that the atoms will occupy. The third layer can be placed around the atoms of the initial layer, making an alternate layer sequence A
⑩、雷射内雕：以计算机辅助激光设备在水晶对象中进行三维图案的成型，艺术效果好，可以任意表达各类图案，图形，达到逼真效果
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Amongst the binary crystals, the best buildings to visualise are These with equal numbers of The 2 different types of atoms. The composition of sodium chloride is predicated with a cube. To assemble the lattice, the sodium and chlorine atoms are put on alternate corners of the cube, plus the composition is recurring (Determine 3B).
广义的包裹体是指宝石内部含有的与主晶宝石化学成分、物理性质等不同的物质。
From your Cambridge English Corpus We say the chain topology inside the superior w area acts because the proverbial ' scratch-on-theglass ' needed while in the natural and organic chemistry laboratory to create crystals. From your Cambridge English Corpus Continuous-pressure and temperature molecular-dynamics simulations of crystals of your lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. In the Cambridge English Corpus Besides these, dust particles are noticed in small-temperature plasmas, like People used in plasma processing and plasma crystals. From your Cambridge English Corpus The final part of the e book concentrates on peculiarities of strongly coupled read more dusty plasmas, like the formation of dust crystals and connected attractive forces. With the Cambridge English Corpus Comprehensive characterization of injury threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. From your Cambridge English Corpus Unbroken crystals are euhedral; rounded, or even more irregular, primary morphologies were not noticed. In the Cambridge English Corpus See all samples of crystal These illustrations are from corpora and from resources on the web. Any opinions within the illustrations usually do not represent the viewpoint of the Cambridge Dictionary editors or of Cambridge College Push or its licensors.
Fig. one: Schematic of crystal development from making blocks made up of a particle core and a shell of DNA ligands hooked up on the particle surface.
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。
Wise Vocabulary: connected words and phrases Geology: mineralogy beneficiation crystalline deposit gemologist gemology gold dust graphite idiomorphic intercrystalline like gold dust idiom magnesium mineral nugget pyrite quasicrystal seam silicon unmined vermiculite vulcanicity See a lot more effects » You can even obtain related words and phrases, phrases, and synonyms in the topics: