tranquillityite

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English[edit]

Etymology[edit]

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

Noun[edit]

tranquillityite (plural tranquillityites)

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

References[edit]

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