Not all crystals are Similarly crystalline. There in many cases are impurities, plus the ionic & covalent involving molecules can generate vastly various structures away from the same product. An excellent illustration of this are diamonds and graphene.
12He tried all over again in numerous other metropolitan areas 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。
Chemical Bonds The types of chemical bonds fashioned amongst atoms or teams of atoms in crystals rely on their measurement and electronegativity. You will find 4 groups of crystals as grouped by their bonding:
Tetragonal: These crystals variety prisms and double pyramids. The composition is like a cubic crystal, besides 1 axis is lengthier than one other.
条痕颜色：无色。矿物粉末的颜色叫条痕。它可以消除假色，减弱他色，保留自色，是比矿物的颜色更为可靠的鉴定特征之一。
Not all crystals sort in h2o, but almost all crystals variety precisely the same way, atoms come with each other and become a uniformed cluster. The process might take as very little as a couple of days to perhaps a thousand yrs. Pure crystals that originate from the Earth variety a similar way.
水晶的评价标准和高端宝石有所不同。多数高端宝石把颜色放在评价的第一位，而对水晶来说，颜色和净度（水晶行业称作晶体）是近乎同等重要的因素：
There is a related directive about crystal glass which differentiates between entire lead crystal, lead crystal and crystal.
仿制钛晶树水晶：钛晶是水晶里价格最昂贵的，造假者当然也不会放过这么好的产品。天然的环境下，在水晶里能生长个像树一样的钛晶，完全是可能的，只是这样的货很少，那我们的造假专家是如何做的呢，白水晶底下打个洞，激光打点成板状的钛晶进去，就这样这块水晶的身价就能飙升几十倍。往往有的钛晶戒面，会采用将钛晶部位割成板状，与圆面的水晶粘合的方法来制作。
The definition of a reliable appears evident; a good is normally regarded as being hard and agency. Upon inspection, however, the definition becomes considerably less easy. A cube of butter, one example is, is tough after getting saved within a fridge and it is Obviously a strong. Soon after remaining over the kitchen area counter for on Crystal a daily basis, the identical dice results in being quite gentle, and it really is unclear Should the butter should nevertheless be regarded a strong.
16I opened the box and saw a piece of crystal snowflake in addition to a greeting card with "Content 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。
水晶形成后由于外力作用或某种人为原因使水晶产生大的裂隙或裂纹，这种裂纹有大有小，对水晶的影响也有大小之分。
This Review chronicles about twenty years of analysis into creating a genetic code for crystal engineering. As opposed to directing Organic procedures, this code employs synthetic types of DNA to programme the assembly of nanoparticles and microparticles into 1D, 2nd and 3D crystalline architectures, in which just about each aspect of the resultant structures could be systematically managed. Inside of this conceptual framework, the structural and useful advances are described in an effort to outline the present standard of sophistication also to predict potential Instructions with the System.
Fig. five: The ability to know outlined crystal patterns is dependent on the symmetry engineering method.