| 词汇 | topaz |
| 释义 | topaz noun[ C or U ] uk /ˈtəʊ.pæz/ us /ˈtoʊ.pæz/ a transparent, yellow stone used in jewellery黄玉，黄宝石 Mny-Jhee/iStock/Getty Images Plus/GettyImages Geology: precious & semi-precious stones amber blood diamond carbuncle carnelian conflict diamond cornelian cultured pearl garnet gem gemmy jet marcasite onyx opal pearl precious stone ruby semiprecious turquoise unset Examples of topaztopaz Some folks say topaz but they're fools. Another problem is nomenclature; names having changed in the course of time: thus the ancient chrysolite is our topaz, the sapphire is our lazuli, etc. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Mineralisation in the deposit includes an oxide-silicate stage consisting of wolframite, cassiterite, arsenopyrite, topaz, muscovite and tourmaline. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Small overgrown dumps at the mouth of the adit also contains large pieces of the topaz and quartz with nests of finely developed tourmaline crystals. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When cut it resembles certain kinds of beryl and topaz, from which it may be distinguished by its specific gravity (3.1). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Its crystal symmetry and form are similar to topaz, however, topaz is a calcium fluorine bearing nesosilicate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Traces of garnet, zircon, topaz, and tourmaline occur. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The crown is decorated with many pearls and gemstones including amethysts, chrysoprases, a topaz and an alexandrite. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Common examples include calcite, quartz, topaz, beryl, tourmaline and fluorite, among others. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This topaz is generally believed to have been chrysolite rather than the more generally known topaz. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. She is primarily the color of rubies, though she shades through into topaz in places; her name means fire-of-the-dawn. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The aplite minerals include tourmaline, topaz and fluorite. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They now have the topaz, ruby, emerald, lapis lazuli, diamond, opal and amethyst gems. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These include peridot, aquamarine, topaz, ruby, emerald, rare-earth minerals bastnaesite and xenotime, sphene, tourmaline, and many varieties and types of quartz. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some gemstones, such as white topaz, have an overlay to produce certain colors. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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