A rare manganese aluminum silicate mineral that forms distinctive monoclinic crystals, named after the Ardennes region.
Named after the Ardennes mountain range in Belgium and France, with the mineral suffix -ite used in geology to denote minerals and rocks.
Mineral names are like geological fossils—ardennite is named after the region where it was discovered, and geologists have been doing this since the 1800s, creating a map of Earth's minerals encoded in their names.
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