Rumored Buzz on Crystal
Rumored Buzz on Crystal
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天然的水晶一般都会有絮状(绵绺),也就是大家俗称的瑕疵,这是液体水落石出和二氧化碳的小孔穴,而人工合成的水晶就不会有这样的特征。
Bismuth (Bi) appears to get a metal, but the amount of electrons readily available for electrical conduction is similar to that of semiconductors. The truth is, bismuth is known as a semimetal. Molecular solids are often crystals shaped from molecules or polymers. They can be insulating, semiconducting, or metallic, dependant upon the sort of molecules during the crystal. New molecules are continually getting synthesized, and several are created into crystals. The quantity of distinct crystals is gigantic.
晶及其石英岩类玉石是中低档宝玉石,虽比不上钻石、红蓝宝石的高贵,但在加工中如果构思巧妙而且加工精细,同样具有很高的价值。如中国传统的玛瑙“虾盘”、“龙盘”、“水漫金山�?水胆玛瑙摆件)都被誉为国家级宝玉石。
水碧:《山海经》中,水晶又被称作水碧: �?又南三百里,日耿山,无草木,多水碧 �?,郭璞注�?�?亦水玉类 ”。这种称谓常被文人所引用,晋代郭景纯《璞江赋》道�?�?鬼,水碧�?�?。水晶又有人称它叫玉瑛。《符瑞图》载�?美石似玉,水精谓之玉瑛也�?”
25If you're a Billy Crystal enthusiast, you will like this movie.如果你是比利·克里斯特尔的影迷,你就会喜欢这部电影。《柯林斯英汉双解大词典》
你们都知道,拿起一个水晶棱镜,让一束阳光通过它,就会得到一个光谱,看起来就像一条连续的彩虹色带。
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。
1A crystal chandelier lit the area.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
Q.four. Exactly what is the difference between atomic structure and get more info crystal composition? Ans. The primary distinction between atomic construction and crystal composition lies within their definitions: atomic construction refers to how atoms are structured inside a one molecule or a cluster of molecules, Whilst crystal composition worries the specific arrangement of atoms within a stable substance.
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。
The basic models of solids are both atoms or atoms which have mixed into molecules. The electrons of the atom move in orbits that variety a shell construction throughout the nucleus. The shells are stuffed in a systematic purchase, with each shell accommodating only a small amount of electrons. Unique atoms have different numbers of electrons, which can be distributed in the attribute Digital composition of loaded and partly filled shells.
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(advancement lines)。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」。
《古今小说·李公子救蛇获称心》:“器皿皆是玻璃、水晶、琥珀、玛瑙为之,曲尽巧妙,非人间所有。”
Tetragonal �?Characterised by a few mutually perpendicular axes, two of which are equal in length, while the third is more time or shorter and perpendicular to the opposite two.