Not known Factual Statements About Crystal
Not known Factual Statements About Crystal
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Not all crystals are Similarly crystalline. There in many cases are impurities, along with the ionic & covalent amongst molecules can produce vastly different buildings from a similar product. An incredible example of this are diamonds and graphene.
⒉棉、云雾或渣状包裹体、杂质在透明水晶内部有雾蒙蒙的现象或是感觉里面像有棉絮状、渣状物质一样的包裹体，这些包裹体的存在，影响水晶的整体美观。还有的水晶内局部含有黑斑或其他颜色的斑状物质，与水晶整体不协调，被视为水晶的杂质，有这种杂质的水晶是次品。
人造水晶分为熔炼水晶与养殖晶：据水晶专家汪毅的阐述，随着水晶的价值提高，喜欢的人增多，水晶也引起了作伪者的兴趣，现阶段中国水晶市场常见的造假方法为：
We have prepared about above three hundred stones in the mineral kingdom! Examine Each individual stone's exceptional origin, historical past, and energies below.
You will discover many different crystals based on geometric constructions, crystal expansion, and content. There might be arrangements of hexagonal carbon atoms or amethyst which makes hexagonal pyramid constructions.
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。
对任何宝石来说，颜色都是非常重要的，水晶也不例外。如果是水晶晶体是有颜色的，如粉水晶、黄水晶、紫水晶等，其颜色评价的最高标准则是明艳动人，不带有灰色、黑色、褐色等其他色调。如粉水晶，颜色以粉红为佳；紫水晶，要求颜色为鲜紫，纯净不发黑；黄水晶，要求颜色不含绿色、柠檬色调，以金橘色为佳。对于发晶来说，晶体的颜色也是很重要的。相同发丝的金发晶，晶体完全无色（白水晶）和晶体略偏茶色，肉眼的视觉观感也是有差别的，所以前者的价格会高于后者。
Hexagonal �?Characterized by 4 axes, three of that are equivalent in duration and intersect at a hundred and twenty degrees, by using a fourth axis perpendicular to the other a few.
Metallic Crystals: Metals often kind metallic crystals, wherever a few of the valence electrons are cost-free to maneuver through the entire lattice. Iron, for example, can sort unique metallic crystals.
英语-中文（简体） term #beta Beta /beta #preferredDictionaries ^picked name /picked /preferredDictionaries
16I opened the box and noticed a piece of crystal snowflake and also a greeting card with "Joyful Birthday" within the blank paper.我打开盒子并看见在白纸中有一片水晶雪花和一张写着“生日快乐”的贺卡。
There are actually just a few different device-cell styles, so many different crystals share one unit-cell form. An important attribute of the device mobile is the volume of atoms it contains. The entire amount of atoms in the whole crystal is the range in Each individual mobile multiplied by the number of unit cells. Copper and aluminum (Al) Each individual have one atom for every unit mobile, while zinc (Zn) and sodium chloride have two. Most crystals have just a few atoms for every device mobile, but there are some exceptions. Crystals of polymers, for instance, here have thousands of atoms in each device cell.
水晶饰品越来越受到人们的喜爱。中国、日本、韩国、美国等国家的人们还对水晶球情有独钟，喜欢将它们摆在家里或办公室里，认为水晶球有灵性，能保平安，带来财运。不过天然水晶不像看起来那么晶莹剔透，它也有瑕疵，我们在选购饰品的时候要注意。此外，我们还要掌握水晶的评价依据、选购方法，这样可以帮助我们在琳琅满目的水晶饰品中选到心仪的水晶。
Tetragonal �?Characterised by a few mutually perpendicular axes, two of that are equal in size, even though the 3rd is longer or shorter and perpendicular to another two.