来自培育钻石行业的消息:Green Rocks 和 Fire Diamonds 启动了一项合作,共同开发全新的彩色培育钻石珠宝系列。 Green Rocks公司成立于佛罗里达州,大股东是著名的以色列钻石商Ofer Mizrahi。今年Green Rocks将在以色列新设8万平方英尺的厂房,计划每年向国际市场提供“数万克拉品质极高的培育钻石”。 Fire Diamonds的总部在...
Diamonds with a natural green color developed that color while they were underground, in rocks that contained small amounts of radioactive material such as uranium or thorium. As the radioactive materials decayed, they emitted radiation that penetrated the nearby diamond crystal. When this type of...
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It is also the gemstone that celebrates the 20th and the 35th wedding anniversary and who would not want an emerald on those special days? Top quality emeralds can be worth more than diamonds on a per-carat basis. The oldest emeralds are about 3 billion years old. ...
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9 Common Green Rocks and Minerals Chlorite. This rock contains a large percentage of chlorite, exhibiting its typical green color. ... Actinolite. Bladed sprays of dark green actinolite are visible in this specimen. ... Epidote. Gemmy olive green crystals of epidote. ... ...
rocks or debris. Q3: How long do vinyl car wraps last? A3: Fiveto seven years. If properly maintained, a car wrap can last up to five years, However, excessive sun exposure can "bake in" the vinyl wrap, making it harder to remove and significantly shorten...
Blue diamonds exist in different shades, such as the deep blue, green blue, gray blue, turquoise and aquamarine. 蓝色钻石以不同的色调存在,如深蓝色,绿蓝色,灰蓝色,绿松石色和海蓝宝石色。 ParaCrawl Corpus Look out over a placid pool, green mountains or a turquoise sea for equally impressive...
(An exception is colored diamonds - they are considered to be colored stones.)Author: Hobart M. King, PhD, GIA Graduate GemologistActinolite (Cat's-Eye) Actinolite is green to grayish green mineral of the amphibole group found in metamorphic rocks. It sometimes has a fibrous texture that ...