5 Simple Statements About Crystal Explained
5 Simple Statements About Crystal Explained
Blog Article
27Local economists have looked into their crystal balls and viewed one thing somewhat horrible.当地的经济学者们已预测到将会出现棘手的问题。《柯林斯英汉双解大词典》
23Sometimes, on the other hand, the crystal sort of the silicate inclusions is observed to resemble additional intently the internal construction of diamond than that of other silicate minerals.然而,有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。
人造水晶分为熔炼水晶与养殖晶:据水晶专家汪毅的阐述,随着水晶的价值提高,喜欢的人增多,水晶也引起了作伪者的兴趣,现阶段中国水晶市场常见的造假方法为:
第一种是“全包裹体”,在水晶结晶的时候把这些物质包裹在晶体里面,这类包裹体所形成的各种景象,大多保持了水晶结晶时的原状,也就是说保存了几亿年的原状,极少受到自然环境的影响。
这种水晶观赏石特指水晶晶簇,它是众多单晶体集中生长在一起的晶体组合。晶簇以其晶莹剔透、独特造型而享誉水晶赏石界。
当二氧化硅结晶完美时就是水晶;结晶不完美的就是石英:二氧化硅胶化脱水后就是玛瑙;二氧化硅含水的胶体凝固后就成为蛋白石;二氧化硅晶粒小于几微米时,就组成玉髓、燧石、次生石英岩。
解理:无解理。所谓解理是指矿物被打击时,沿一定方向有规则地裂开形成光滑平面的性质。根据解理的程度可以分为五类:极完全解理、完全解理、中等解理、不完全解理和无解理,水晶属于无解理。
发晶:无色、浅黄、浅褐等,可因含金红石常呈金黄、褐红等色,含电气石常呈灰黑色;含阳起石而呈灰绿色。
Q.4. What's the difference between atomic composition and crystal structure? Ans. The primary distinction between atomic structure and crystal composition lies within their definitions: atomic composition refers to how atoms are organized in a single molecule or perhaps a cluster of molecules, whereas crystal composition considerations the precise arrangement of atoms in a stable material.
crystal The freshly crystallized quartz grains are characterised by elongate crystals oriented oblique towards the shear band margins, defining a standard grain-condition foliation. 来自 Cambridge English Corpus We are saying the chain topology inside the substantial w region functions because the proverbial ' scratch-on-theglass ' needed during the natural chemistry laboratory to make crystals. 来自 Cambridge English Corpus read more The age scatter among the individual crystals could reflect incorporation of xenocrysts from before magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene varieties neutral to pale brown, subhedral to anhedral crystals, occasionally that contains inclusions of plagioclase microlaths and opaque phases.
Search cryptosporidiosis cryptosporidium cryptozoologist cryptozoology crystal crystal ball crystal obvious idiom crystal lattice BETA copyright #randomImageQuizHook.filename #randomImageQuizHook.isQuiz Exam your vocabulary with our entertaining picture quizzes
正常的水晶在生长时,多可以发现和柱形尖端棱线平行的生长纹(development traces)。由于在地底、岩洞中的生长空间多狭窄,尤其在遇到地震时,或地壳变动时,甚至容易遭到其他矿石的挤压,常常会压迫产生不同的「晶面」。还有,当水晶还是在液态状的时候,常常也会包覆着其他的矿石、泥灰一起结晶成长,如金红石(稍后变成发晶)、火山泥灰(稍后变成幻影水晶)等等。所有的这些,都是「自然的一部分」,请不要视为「瑕疵」。
⑦双色水晶:一种紫色和黄色共存一体的水晶,紫色、黄色之间界限较明显,分别占据晶块的一部分。
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。