对这类水晶晶簇观赏石的欣赏与评价，主要是强调晶体的完整、品种的名贵（如紫水晶、烟晶、发晶等）、造型奇特、含有名贵晶体（如辰砂、辉锑矿等）伴生等。晶簇产于矿床晶洞中，长相完美的并不多见，要完整无损地采集下来，又比较困难，故而采集起来代价较大，精品晶簇价值也就昂贵了。

Bismuth (Bi) appears for being a metal, but the amount of electrons readily available for electrical conduction is analogous to that of semiconductors. In fact, bismuth is referred to as a semimetal. Molecular solids tend to be crystals fashioned from molecules or polymers. They may be insulating, semiconducting, or metallic, according to the kind of molecules within the crystal. New molecules are repeatedly currently being synthesized, and plenty of are created into crystals. The volume of various crystals is enormous.

景观水晶，就是包裹体组成各种造型特异的水晶，有的似山水，有的似人物，有些像文字，有些像动物，植物，器物等等。

看原料：选料精良的水晶制品，应看不到胶口及棉絮；质地纯净、光润、晶莹为好。

25If you are a Billy Crystal enthusiast, you will adore this movie.如果你是比利·克里斯特尔的影迷，你就会喜欢这部电影。《柯林斯英汉双解大词典》

⑧、雕刻：立体感强，工艺高，做工精细，成本高。分手工雕刻图形、机器雕刻文字。

水晶与高档宝石的净度要求有很大不同。高档宝石稀少罕见，所以一般人们普遍对高档宝石的净度不会过于苛求。而水晶的产量着实大得惊人，所以通常人们会要求水晶净度越高越好，尽量避免有较明显的内含物的水晶。

损伤是指水晶由于加工或不小心摔掉、碰撞等原因，人为造成的损坏。它可以是破口，也可以是凹坑等。

Quite a few crystals behave like butter in that they are difficult at minimal temperatures but gentle at higher temperatures. They can be called solids in any way temperatures under their melting stage. A probable definition of a reliable can be an object that retains its condition if remaining undisturbed. The pertinent issue is just how long the thing retains its form. A remarkably viscous fluid retains its form for an hour or so although not a yr. A stable will have to keep its shape lengthier than that.

Solids which have small-array buy but lack extended-range purchase are called amorphous. Practically any substance may be built amorphous by fast solidification from the soften (molten state). This condition is unstable, as well as the stable will crystallize in time. When the timescale for crystallization is a Crystal long time, then the amorphous condition appears steady.

16I opened the box and noticed a bit of crystal snowflake as well as a greeting card with "Pleased Birthday" in 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。

crystal, any solid material where the part atoms are organized within a definite pattern and whose surface area regularity reflects its inner symmetry.

水晶的价值根据品质、块体的大小、美感和产量多少的不同相差较大。遇到好的天然水晶要敢于下手，但好的水晶一般大家都想得到，值与不值，就要看经验了。由于天然水晶的开采和制作原因，没有瑕疵的水晶很难得到，纯净的饰品要达到与合成水晶媲美的品质，实在是很难得。另外，由于水晶的特性，在佩戴过程中，也会改变其等级，比如因为某种原因，有可能会逐渐产生较大裂纹。