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A dark-colored spinel containing iron
Answer for the clue "A dark-colored spinel containing iron ", 9 letters:
ceylonite
Word definitions for ceylonite in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Ceylanite \Cey"lan*ite\, n. [F., fr. Ceylan Ceylon.] (Min.) A dingy blue, or grayish black, variety of spinel. It is also called pleonaste . [Written also ceylonite .]
Wikipedia
Word definitions in Wikipedia
Ceylonite (first cited 1793) and pleonaste (first cited 1801) are dingy blue or grey to black varieties of spinel . Ceylonite, named for the island of Ceylon , is a ferroan spinel with Mg:Fe from 3:1 and 1:1, and little or no ferric iron. Pleonaste is named ...