Crystal Secrets
Crystal Secrets
Blog Article
These crystals were being fashioned above 1,000,000 a long time in the past Within the Earth's crust. They happen in the event the liquid within the Earth consolidates and the temperature chills. Other crystals form once the liquid makes its way throughout the clefts and dispense minerals into the clefts.
①压电效�?在机械力(压力或拉�?作用下,水晶单晶体的两端会产生电荷,其电量相等但符号相反。在工业上,无色、无缺陷、不具双晶的水晶常被用来作压电石英片。
发晶的价值取决于发的颜色、罕见性及大小,一般是发色鲜艳、块度大的价格高。水胆水晶的价值主要取决于水胆及晶体的大小、透明度的高低。如果水胆较大并有一定形态,便可加工成较为珍贵的工艺品。另外水胆中的水也有一定的科学研究价值,通过它们可了解几百万年前地球上水的成分及变化。
Incorporate to word checklist Add to word checklist C2 [ U ] transparent glass of extremely superior quality, typically with its area Minimize into fragile patterns
2She was donning a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
Monoclinic �?Characterised by a few unequal axes, two of which intersect at an oblique angle, when the 3rd is perpendicular to the aircraft of the opposite two.
根据包裹体和主晶宝石之间形成的先后关系可将水晶的包裹体划分以下三种类�?
Ionic Crystals: Electrostatic forces form ionic bonds. A common example can be a halite or salt crystal.
Numerous crystals behave like butter in that they are difficult at reduced temperatures but soft at larger temperatures. They may be known as solids in the least temperatures under their melting issue. A probable definition of the reliable is undoubtedly an object that retains its shape if remaining undisturbed. The pertinent concern is how much time the article keeps its condition. A very viscous fluid retains its form for an hour but not a 12 months. A reliable ought to retain its shape more time than that.
[ C/U ] transparent glass of high quality, commonly with its area cut into designs that reflect light-weight
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。
的释�?浏览 cryptologist cryptology website cryptorchidism cryptosporidium crystal crystal ball crystal distinct idiom copyright crystalline #randomImageQuizHook.filename #randomImageQuizHook.isQuiz 用我们的趣味配图小测验考考你的词汇量
⑨、喷砂:立体感弱,较平整,无凹凸感,机器雕刻文字、图形等后进行效果处理。成本低制作快。
水晶观赏石在形态、质地、内部特征等方面往往十分奇异。大自然有无限风光,都可以在包裹体水晶种找到缩影。