demantoid
/dih-man-toid/US // dɪˈmæn tɔɪd //UK // (dɪˈmæntɔɪd) //
玳瑁,德曼陀罗,玳瑁色,玳瑁类
Definitions
n.名词 noun
- 1
Mineralogy.
- : a brilliant green variety of andradite garnet, used as a gem.
Examples
The luster, too, is diamond-like as the name "demantoid" signifies.
Green garnets are of two kinds, the calcium-iron garnet, known as demantoid, and the calcium-chromium garnet known as uvarovite.
The demantoid garnet (sometimes called "olivine" in the trade).
The demantoid garnet is also very soft as compared with emerald (61⁄2 as against nearly 8).
As was explained under garnet, jewelers frequently use the term "olivine" to designate demantoid garnet.
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