Crystal Fundamentals Explained
Crystal Fundamentals Explained
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轴性、光性：一轴晶正光性。正交偏光下所看到的一轴晶干涉图是独特的，其黑十字臂未达中心，形成中空的图案，俗称牛眼干涉图。中心部分通常为淡绿色或淡粉色。
the solid point out of many simple substances, that have a regular shape and surfaces arranged in similar styles
晶及其石英岩类玉石是中低档宝玉石，虽比不上钻石、红蓝宝石的高贵，但在加工中如果构思巧妙而且加工精细，同样具有很高的价值。如中国传统的玛瑙“虾盘”、“龙盘”、“水漫金山�?水胆玛瑙摆件)都被誉为国家级宝玉石。
We've prepared about over three hundred stones within the mineral kingdom! Read about Each individual stone's exceptional origin, heritage, and energies underneath.
You can also find many elements that resemble crystals but are literally polycrystals. Polycrystals kind when microscopic crystals fuse with each other to sort a sound. These supplies will not encompass requested lattices.
SMART Vocabulary: similar text and phrases Glass blower blowpipe bulletproof glass cut glass fibreglass frosted glassware glaze glazed glazier glazing prism prismatic punty Pyrex reglaze unglazed vitreous vitrification vitrify See more effects » You may as well locate similar phrases, phrases, and synonyms within the subject areas:
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：
26Some of the finest consuming Eyeglasses are created from guide crystal.一些最精致的酒杯是用铅晶质玻璃制成的。《柯林斯英汉双解大词典》
24I intend to make my indicating crystal crystal clear.我想把我的意思解释得清清楚楚。《牛津词典》
The definition of a good appears noticeable; a solid is mostly regarded as currently being really hard and agency. On inspection, nonetheless, the definition gets to be fewer easy. A dice of butter, by way of example, is tough just after staying saved inside a fridge which is Plainly a good. Just after remaining over the kitchen counter for daily, the exact same dice turns into pretty comfortable, and it's unclear When the butter really should continue to be considered a good.
16I opened the box and noticed a piece of crystal snowflake as well as a greeting card with "Delighted Birthday" while 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。
Crystallography would be the study of crystals, and it offers with all the things from fantastic geometric designs to seemingly random conglomerations of particles and minerals.
The construction in the sodium atoms on your own, or perhaps the chlorine atoms on your own, is fcc and defines the unit cell. The sodium chloride construction As click here a result is produced up of two interpenetrating fcc lattices. The cesium chloride lattice (Figure 3A) relies over the bcc construction; just about every other atom is cesium or chlorine. In this instance, the device cell is usually a cube. The 3rd significant framework for AB
This crystal construction is accountable for the exceptional Bodily and chemical Houses of sodium chloride, such as its superior melting level, electrical conductivity, and ability to form ionic bonds conveniently.