李商隐,杜牧,白居易,欧阳修,苏轼,呈大昌,辛弃疾,杨万里,吴文英,杨基,魏源等诗坛,词林大家都有歌吟水晶的佳篇传世。
杂质、裂纹越少越好。质地好的水晶制品,应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点,则属于次品。
人造水晶分为熔炼水晶与养殖晶:据水晶专家汪毅的阐述,随着水晶的价值提高,喜欢的人增多,水晶也引起了作伪者的兴趣,现阶段中国水晶市场常见的造假方法为:
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。
2She was sporting a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
Lattices could have a person lattice position per mobile or multiple, yielding a complete of fourteen Bravais crystal lattice varieties. Bravais lattices, named for physicist and crystallographer Auguste Bravais, explain the three-dimensional array made by a list of discrete factors.
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。
发晶:无色、浅黄、浅褐等,可因含金红石常呈金黄、褐红等色,含电气石常呈灰黑色;含阳起石而呈灰绿色。
Metallic Crystals: Metals typically form metallic crystals, where a lot of the valence electrons are no cost to maneuver through the entire lattice. Iron, as an example, can type different metallic crystals.
⑤化学稳定�?非常好,在常温下仅溶解于氢氟酸,不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。
The essential models of solids are possibly atoms or atoms which have merged into molecules. The electrons of the atom go in orbits that type a shell composition throughout the nucleus. The shells are loaded in a systematic purchase, with Each individual shell accommodating only a little range of electrons. Different atoms have distinct figures of electrons, that happen to be dispersed in a attribute electronic construction of stuffed and partially stuffed shells.
Molecular Crystals: Complete molecules are bonded to one another within an arranged manner. A superb instance can be a sugar crystal, which is made up of sucrose molecules.
压电性:水晶晶体受到压力时会产生电荷;反之,受到电压作用时,晶体会产生频率很高的振动。水晶具有可使压力与电荷相互转移的性能,称压电性。
One more kind of crystalline carbon relies over a molecule with 60 carbon atoms known as buckminsterfullerene (C60). The molecular form website is spherical. Every carbon is bonded to three neighbours, as in graphite, as well as the spherical condition is accomplished by a mix of twelve rings with five sides and twenty rings with six sides. Identical structures were 1st visualized via the American architect R. Buckminster Fuller for geodesic domes.
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