Not known Details About Crystal
Not known Details About Crystal
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These crystals have been fashioned more than 1,000,000 yrs ago Within the Earth's crust. They come about if the liquid in the Earth consolidates as well as temperature chills. Other crystals kind if the liquid helps make its way throughout the clefts and dispense minerals in to the clefts.
12He tried all over again in quite a few other towns 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。
A crystal structure concentrates on how the atoms are arranged In the crystal. Nevertheless, crystallographers have an interest in the general form and dimension from the crystal in addition to its exterior features. To accomplish this, they should learn about the crystal procedure.
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。
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。
These examples are from more info corpora and from resources online. Any thoughts in the examples never depict the viewpoint on the Cambridge Dictionary editors or of Cambridge College Push or its licensors.
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。
There exists a identical directive about crystal glass which differentiates among whole direct crystal, guide crystal and crystal.
24I need to make my this means crystal very clear.我想把我的意思解释得清清楚楚。《牛津词典》
The definition of the reliable appears noticeable; a stable is mostly considered currently being hard and organization. On inspection, nevertheless, the definition becomes significantly less uncomplicated. A dice of butter, one example is, is tough right after being saved in the fridge and is clearly a reliable. Immediately after remaining about the kitchen area counter for each day, precisely the same cube gets to be fairly gentle, and it can be unclear If your butter really should continue to be regarded as a strong.
看孔眼:对于缀穿水晶制品(如项链、手链、佛珠),要看孔眼是否平直,孔的粗细是否均匀,有无细小裂纹。孔壁必须清澈透明,无“白痕”。
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 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。
水晶的价值根据品质、块体的大小、美感和产量多少的不同相差较大。遇到好的天然水晶要敢于下手,但好的水晶一般大家都想得到,值与不值,就要看经验了。由于天然水晶的开采和制作原因,没有瑕疵的水晶很难得到,纯净的饰品要达到与合成水晶媲美的品质,实在是很难得。另外,由于水晶的特性,在佩戴过程中,也会改变其等级,比如因为某种原因,有可能会逐渐产生较大裂纹。