agardite
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English[edit]
Etymology[edit]
From Agard + -ite, after French geologist Jules Agard.
Noun[edit]
agardite (countable and uncountable, plural agardites)
- (mineralogy) Any of a group of copper arsenate minerals that contain varying proportions of several rare earth elements such as cerium, neodymium, lanthanum and yttrium.