The story
F X M Zippe, Prague mineralogist, and -ite.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A hydrous potassium uranium sulfate mineral with chemical formula K₄(UO₂)₆(SO₄)₃(OH)₁₀·4(H₂O), forming yellow to reddish-brown monoclinic-prismatic crystals with perfect cleavage and formerly used in the manufacture of paint. Full definition →
F X M Zippe, Prague mineralogist, and -ite.
Etymology from Wiktionary, CC BY-SA 4.0.