Not all crystals are equally crystalline. There are sometimes impurities, as well as the ionic & covalent in between molecules can build vastly diverse structures out of precisely the same substance. An awesome illustration of this are diamonds and graphene.
One more fun, and tasty, experiment should be to variety significant crystals utilizing sugar. By heating sugar with h2o after which permitting this Option evaporate on sticks, you could variety rock sweet from sugar crystals!
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。
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。
2She was putting on a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
Monoclinic �?Characterised by 3 unequal axes, two of which intersect at an oblique angle, when the 3rd is perpendicular to the aircraft of one other two.
时尚的收藏爱好者喜欢收藏天然水晶，却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶：
如果水晶内部杂质中有传说中人物的造型，如佛、星座、生肖等价值可能要高于同等颜色和净度的水晶。
24I need to make my indicating crystal obvious.我想把我的意思解释得清清楚楚。《牛津词典》
The definition of the good seems noticeable; a sound is generally regarded as staying tough and firm. Upon inspection, having said that, the definition results in being fewer easy. A dice of butter, such as, is difficult right after becoming stored within a refrigerator which is clearly a good. Soon after remaining around the kitchen area counter for each day, the same cube becomes really delicate, click here and it is unclear In the event the butter really should still be deemed a sound.
say cheese something that someone that is using a photograph of you tells you to convey so that the mouth makes the shape of the smile
Molecular Crystals: Whole molecules are bonded to each other in an organized way. An excellent example is often a sugar crystal, which has sucrose molecules.
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A further sort of crystalline carbon is based over a molecule with 60 carbon atoms named buckminsterfullerene (C60). The molecular shape is spherical. Each individual carbon is bonded to a few neighbours, as in graphite, as well as spherical shape is realized by a mixture of 12 rings with 5 sides and 20 rings with six sides. Equivalent constructions were to start with visualized from the American architect R. Buckminster Fuller for geodesic domes.