5 Easy Facts About Crystal Described
5 Easy Facts About Crystal Described
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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。
the strong point out of numerous simple substances, which have a regular condition and surfaces arranged in equivalent patterns
A crystal structure concentrates on how the atoms are arranged In the crystal. Having said that, crystallographers have an interest in the overall form and measurement in the crystal along with its external features. To accomplish this, they should learn about the crystal method.
水碧：《山海经》中，水晶又被称作水碧： �?又南三百里，日耿山，无草木，多水碧 �?，郭璞注�?�?亦水玉类 ”。这种称谓常被文人所引用，晋代郭景纯《璞江赋》道�?�?鬼，水碧�?�?。水晶又有人称它叫玉瑛。《符瑞图》载�?美石似玉，水精谓之玉瑛也�?”
How Crystals Variety The entire process of forming a crystal is termed crystallization. Crystallization typically takes place whenever a strong crystal grows from a liquid or Remedy.
当二氧化硅结晶完美时就是水晶；结晶不完美的就是石英：二氧化硅胶化脱水后就是玛瑙；二氧化硅含水的胶体凝固后就成为蛋白石；二氧化硅晶粒小于几微米时，就组成玉髓、燧石、次生石英岩。
Include to word checklist Add to phrase list [ C/U ] clear rock that appears like ice, or a piece of it
Hexagonal �?Characterized by 4 axes, three of which happen to be equal in size and intersect at a hundred and twenty degrees, by using a fourth axis perpendicular to the opposite three.
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看文化：水晶里面的包裹体象形，能与文化、宗教及历史有所牵连的话，价格往往会比水晶本身的价值高出几倍甚至几百倍。
看孔眼：对于缀穿水晶制品（如项链、手链、佛珠），要看孔眼是否平直，孔的粗细是否均匀，有无细小裂纹。孔壁必须清澈透明，无“白痕”。
Crystals are not only renowned for his or her physical overall look, but distinctive crystals of various supplies and formations may end up in a vast selection of works by using and physical properties.
Crystals are labeled usually types, like insulators, metals, semiconductors, and molecular solids. One crystal of the insulator is generally transparent and resembles a piece of glass. Metals are shiny unless they've rusted. Semiconductors are occasionally shiny and from time to time clear but are in no way rusty. A lot of crystals is usually labeled as a single variety of reliable, while others have intermediate behaviour. Cadmium sulfide (CdS) can be geared up in pure type and is an excellent insulator; when impurities are added to cadmium sulfide, it becomes a fascinating semiconductor.
SMART Vocabulary: connected text and phrases Geology: mineralogy beneficiation crystalline deposit gemologist gemology gold dust graphite idiomorphic intercrystalline like gold dust idiom magnesium mineral nugget pyrite quasicrystal seam silicon unmined vermiculite vulcanicity See far more effects » You can check here also find linked words and phrases, phrases, and synonyms during the subject areas: