New Step by Step Map For Crystal
New Step by Step Map For Crystal
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A stable is crystalline if it's got extended-vary get. When the positions of the atom and its neighbours are recognized at one particular level, the position of each and every atom is known precisely all through the crystal. Most liquids absence prolonged-selection purchase, Despite the fact that many have quick-vary get. Quick array is defined as the primary- or 2nd-closest neighbours of an atom. In many liquids the initial-neighbour atoms are organized in the exact same framework as within the corresponding sound section.
按照透明度指标，水晶越透明，价格越高，好的透明的水晶加工出的成品晶莹剔透、光辉耀眼。透明度高的水晶能提升颜色的艳丽，否则显得呆板无灵性。光学水晶要求全透明、无双晶、无杂质。工艺水晶要求透明、少裂、少瑕疵。熔炼水晶要求透明，可有较多裂纹。三者价值依次降低，熔炼水晶只能作为熔炼水晶玻璃的原料。在工艺水晶中，晶体较大的，可用来做水晶眼镜和雕刻高档工艺品，因而价格较高。
4Without a crystal ball, It is extremely hard to mention the place we are going to be subsequent calendar year.不用水晶球预卜未来，我们说不准明年处境如何呀。《牛津词典》
If you want to see how crystals are shaped, you could perform a little task inside your extremely individual kitchen area and find out the development of the crystals take place along with your very own eyes . This may be completed by Placing a small amount of desk salt into some typical faucet h2o, wait around 24 several hours, and you may see pleasant cubed formations. This takes place as the water is evaporating, which leads to the atoms that make up the salt (the mineral) plus the h2o to come back closer together.
You will find numerous crystals dependant upon geometric buildings, crystal progress, and materials. There can be preparations of hexagonal carbon click here atoms or amethyst which makes hexagonal pyramid buildings.
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。
⑦、镀彩：运用类似电镀的手法在水晶表面以不同的色彩，层面较薄，经摩擦可划伤�?；出现划痕，由于镀彩经常位于底部，因此在镀彩底部经常采用其它对象附着，如生肖文镇。
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。
包裹体常见有固相、固液气三相组合、空洞以及双晶、色带等。水晶中典型的同生包裹体有自形的锐钛矿、气液两相包体等。
幽灵水晶，分绿幽灵，红幽灵，白幽灵等，主要组成为绿泥石，其中绿幽灵属于珍贵品种。
天然性是水晶观赏石的基本特性。通常整体造型水晶矿物不饰雕琢就具备很高的观赏价值，但是包裹体水晶观赏石经常需要适当打磨抛光，这样更方便观赏水晶内部的包裹体。
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」。
水玉：中国最古老的称法叫水玉，意谓似水之玉，又说是 �?千年之冰所�?�?。唐代诗人温庭筠《题李处士幽居》写道：�?水玉簪头白角巾，瑶琴寂历拂轻�?”。水玉一词最早频繁出于《山海经》：�?又东三百里，日堂庭之�?…�?多水�?”；�?丹山出焉，东南流注于洛水，其中多水玉 ”；�?逐水出焉，北流注于渭，其中多水玉 ”。司马相如《上林赋》曰�?�?水玉磊河 �?。水晶得名水玉，古人是看�?�?其莹如水，其坚如�?�?的质地。
Sensible Vocabulary: relevant words and phrases 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 much more effects » You can also find relevant terms, phrases, and synonyms during the subject areas: