看颜色：即使在同一种类的水晶中，它的不同部位的纹理、色泽也各式各有千秋。属于单色的，要色度均匀；在同一块水晶上有深浅的，则要求其色调纹路美观大方。
12He tried using once more in several other cities 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 categories of chemical bonds formed between atoms or groups of atoms in crystals depend on their dimensions and electronegativity. You will discover 4 categories of crystals as grouped by their bonding:
Fig. 7: A template-directed approach can Command The position of developing blocks with a surface from the development of complex constructions.
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。
结晶�?When sea h2o is allowed to evaporate, salt crystals are deposited. 海水蒸发后，盐的结晶体就沉淀下来。
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：
There exists a related directive about crystal glass which differentiates in between whole lead crystal, guide crystal and crystal.
Quite a few crystals behave like butter in that they are difficult at lower temperatures but delicate at greater temperatures. They're referred to as solids in any way temperatures down below their melting place. A achievable definition of the reliable is undoubtedly an item that retains its form if remaining undisturbed. The pertinent issue is just how long the object retains its form. A extremely viscous fluid retains its condition for an hour or so but not a 12 months. A good need to preserve its form for a longer period than that.
crystal The freshly crystallized quartz grains are characterised by elongate crystals oriented oblique to the shear band margins, defining a standard grain-form foliation. 来自 Cambridge English Corpus We say the chain topology during the significant w area functions given that the proverbial ' scratch-on-theglass ' essential within the organic and natural chemistry laboratory to make crystals. 来自 Cambridge English Corpus The age scatter amongst the person crystals might mirror incorporation of xenocrysts from before magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene varieties neutral to pale brown, subhedral to anhedral crystals, at times made up of inclusions of plagioclase microlaths and opaque phases.
15The trick to an excellent thermoelectric product is really a crystal structure through which electrons can flow freely.制造一种好的热电材料的关键是，需要一种电子可以自由流动的晶体结构。
Molecular Crystals: Whole molecules are bonded to one another within an organized fashion. A superb example can be a sugar crystal, which incorporates sucrose molecules.
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This crystal structure is chargeable for the special Bodily and chemical properties of sodium chloride, which include its high melting position, electrical conductivity, and skill to kind ionic bonds quickly.