Crystal for Dummies

Crystal for Dummies

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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。

无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。

结晶的形状非常细小，需要用显微镜才能看得清楚，外观上看起来是平滑、块状。常见最多的是各式玛瑙

Add to term list Increase to phrase checklist C2 [ U ] clear glass of incredibly premium quality, ordinarily with its area Minimize into fragile designs

25If you are a Billy Crystal enthusiast, you will really like this film.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》

Monoclinic �?Characterised by three unequal axes, two of which intersect at an oblique angle, although the 3rd is perpendicular to your airplane of the opposite two.

水晶内部有多种矿物包裹体，形成的各种景观可以肉眼观测，这样的水晶就是包裹体水晶观赏石。由于水晶本身就是宝石，因此人们称誉包裹体水晶为“宝石级的观赏石”。包裹体水晶观赏石都具有独特性，具有极高欣赏和收藏价值。

损伤是指水晶由于加工或不小心摔掉、碰撞等原因，人为造成的损坏。它可以是破口，也可以是凹坑等。

Crystals tend to be considered as a little something of enormous elegance, and they are generally made use of with diamonds or other stones to generate items of jewellery. The majority of crystals now are male-built in laboratories.

[ C/U ] clear glass of top of the range, commonly with its floor Slice into styles that mirror mild

用手去触摸水晶，天然水晶通常温度要比人造水晶的要凉的多；用眼观察，天然水晶通常有棉絮状的包裹体，这个是人造水晶所没有的。

Crystallography will be the review of crystals, and it promotions with anything from ideal geometric designs to seemingly random conglomerations of particles and minerals.

压电性：水晶晶体受到压力时会产生电荷；反之，受到电压作用时，晶体会产生频率很高的振动。水晶具有可使压力与电荷相互转移的性能，称压电性。

Another form of crystalline carbon is based on the molecule with sixty carbon atoms referred to as buckminsterfullerene (C60). The molecular condition is spherical. Every single carbon is get more info bonded to 3 neighbours, as in graphite, as well as the spherical form is reached by a combination of twelve rings with 5 sides and twenty rings with 6 sides. Identical structures have been to start with visualized by the American architect R. Buckminster Fuller for geodesic domes.