水晶表面坑洼的地方，有的深，有的浅，这是水晶在成长过程中自然形成的，并非是人为造成的损伤。缺陷位置本来包有其他矿物晶体，由于包裹体和水晶结合部位的结合力不强，当表面抛光时，矿体脱落，留下空位。这种缺陷在绿幽灵、钛晶、金发晶上都比较常见。
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。
水晶文化历史悠久，古人曾赋予它一串极富美感的雅称：水玉、水精、水碧、石英等。
Tetragonal: These crystals type prisms and double pyramids. The composition is sort of a cubic crystal, other than a person axis is longer than the opposite.
断口：贝壳状。断口也叫破口。它是指矿物被打击后产生不规则的破裂，破裂裂面凹凸不平称为断口。根据断口的形状可分为贝壳状和锯齿状。
发晶，包括钛晶，铜顺发，绿发晶，黑发晶，银发晶，杂色发晶，其中钛晶最珍贵，少数钛晶价值可比钻石，红宝石和蓝宝石以及祖母绿。
30Three days went past, and I used to be astonished to check out it yet again: all the openings had been sewed up by skinny and white thread and so they seemed such as ice crystal on Winter season's branches inside the north.
You will find a equivalent directive about crystal glass which differentiates amongst whole direct crystal, direct crystal and crystal.
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多色�?无色水晶没有多色性。有色水晶有弱到强的多色�?表现为体色的不同深浅。
Single crystals of metals are comfortable and malleable, though polycrystalline metals are harder and much better and tend to be more useful industrially. Most polycrystalline resources can be manufactured into substantial single crystals immediately after extended heat remedy. Up to now blacksmiths would heat a bit of steel to really make it malleable: heat would make a few grains mature significant by incorporating scaled-down types. The smiths would bend the softened steel into shape and after that pound it awhile; the pounding would make it polycrystalline all over again, rising its strength.
隐晶类水晶外观是一块块的，不是成六角水晶簇状，但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶，因为结晶的体积极为细小，需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑，因为结晶之间有“水化硅石”填补，玛瑙便属于此类。
水精：水晶为何称为水精，《广雅》有巧解：�?水之精灵�?”；李时珍则说：�?莹洁晶光，如水之精英 ”。细加考究，此称还蕴含浓厚的宗教意味呢。水精一名，最初见于佛书，后汉支曜翻译的《具光明定意经》说：�?其所行道，色如水�?�?。
Binary crystals are found in several structures. Some pairs of factors kind multiple structure. At room temperature, cadmium sulfide may perhaps crystallize possibly during the click here zinc blende or wurtzite composition. Alumina also has two possible constructions at space temperature, α-alumina (corundum) and β-alumina. Other binary crystals exhibit diverse structures at various temperatures. Among the many most elaborate crystals are These of silicon dioxide (SiO2), that has 7 distinct constructions at various temperatures and pressures; the commonest of these constructions is quartz.