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A green andradite used as a gemstone
Answer for the clue "A green andradite used as a gemstone ", 9 letters:
demantoid
Word definitions for demantoid in dictionaries
Wiktionary
Word definitions in Wiktionary
n. a green garnet
Wikipedia
Word definitions in Wikipedia
Demantoid is the green gemstone variety of the mineral andradite , a member of the garnet group of minerals. Andradite is a calcium - and iron -rich garnet. The chemical formula is CaFe(SiO) with chromium substitution as the cause of the demantoid green ...
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Demantoid \De*man"toid\, n. [G. demant diamond + -oid.] (Min.) A yellow-green, transparent variety of garnet found in the Urals. It is valued as a gem because of its brilliancy of luster, whence the name.
WordNet
Word definitions in WordNet
n. a green andradite used as a gemstone
Usage examples of demantoid.
The different shades of green in tourmaline, emerald, peridot and demantoid garnet, that wonderful apricot color of imperial topaz.
Only zircons and demantoid garnets approach the distinctive adamantine luster of diamonds, and they reflect only about half the light.
Dan had taught her how to distinguish the greens of tourmaline and emerald and the rare demantoid garnets, and as a special treat he let her play the game that was not a game at all but a method of distinguishing between topazes and the less valuable citrines of identical color.