tranquillityite

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English

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Etymology

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From tranquillity +‎ -ite, after the Sea of Tranquillity, a basin on the Moon where the mineral was first found.

Noun

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tranquillityite (plural tranquillityites)

  1. (mineralogy) A hexagonal dark red mineral containing iron, oxygen, silicon, titanium, yttrium, and zirconium.

References

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  • David Barthelmy (1997–2024) “Tranquillityite”, in Webmineral Mineralogy Database.
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