agardite

English

Etymology

From Agard +‎ -ite, after French geologist Jules Agard.

Noun

Agardite-(Ce) in the form of pistachio-green acicular crystals on contrasting matrix

agardite (countable and uncountable, plural agardites)

1. (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.