Crystal Fundamentals Explained
Crystal Fundamentals Explained
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Calcite crystals are often used in optical equipment, and in many cases the graphite in pencil direct are sheets of crystals that in essence crack apart layer by layer to put in writing. Silica can form silicate crystals which can be the basis for quartz, mica, olivine, and many other crystals and minerals.
Crystals are lovely rock formations that have impressed humans for A huge number of yrs. They can be employed for lots of various things, not only for decoration. Many of the initial radios at any time invented utilized crystals to transmit the radio waves. Some instruments, like quartz watches and laser crystals, use Unique properties and harmonic capabilities of crystals to make really accurate measurements and adjustments.
看做工：水晶制品加工过程分为两种，即磨工和雕工。如水晶项链、手链、耳环等属于研磨品；观音像、内画鼻烟壶等属于雕刻品。
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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。
SMART Vocabulary: similar words and phrases and phrases Glass blower blowpipe bulletproof glass Slash glass fibreglass frosted glassware glaze glazed glazier glazing prism prismatic punty Pyrex reglaze unglazed vitreous vitrification vitrify See a lot more benefits » It's also possible to come across associated terms, phrases, and synonyms during the matters:
解理：无解理。所谓解理是指矿物被打击时，沿一定方向有规则地裂开形成光滑平面的性质。根据解理的程度可以分为五类：极完全解理、完全解理、中等解理、不完全解理和无解理，水晶属于无解理。
26Some of the finest consuming glasses are constructed from direct 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》
A lot of crystals behave like butter in that they're challenging at lower temperatures but soft at bigger temperatures. These are known as solids in the slightest degree temperatures underneath their melting place. A possible definition of a solid is an object that retains its form if still left undisturbed. The pertinent situation is just how long the object retains its condition. A highly viscous fluid retains its shape for an hour although not a 12 months. A strong ought to continue to keep its form lengthier than that.
Solids that have limited-vary get but lack very long-selection order are website referred to as amorphous. Nearly any content is usually manufactured amorphous by swift solidification within the melt (molten condition). This ailment is unstable, plus the reliable will crystallize in time. Should the timescale for crystallization is a long time, then the amorphous condition appears steady.
天然性是水晶观赏石的基本特性。通常整体造型水晶矿物不饰雕琢就具备很高的观赏价值，但是包裹体水晶观赏石经常需要适当打磨抛光，这样更方便观赏水晶内部的包裹体。
Orthorhombic: They're rhombic prisms and dipyramids that resemble tetragons but with no square cross-sections.
在透明的水晶中，隐裂纹呈亮晶晶的片状，有时还会有晕彩效应。这些裂纹是水晶在生长过程中，遇到外力挤压而在内部产生的一些隐形裂纹，隐裂纹在芙蓉石、紫水晶、白水晶球及白水晶柱中都很常见。有的裂纹后来被物质填充，形成愈合的裂纹，也就是原来的裂纹又长住了。这种裂纹对水晶的影响相对要小一些。
Fig. five: The chance to know described crystal practices is dependent on the symmetry engineering approach.