The story
From Acmonides (from Greek Ακμωνιδης), who was a Cyclops and a helper of Hephaistos, the god of fire whose forge was said to be located at Vulcano + -ite.
Etymology from Wiktionary, CC BY-SA 4.0.
acmonidesite
Today it means: An orthorhombic sulfate chloride mineral with the chemical formula (NH₄,K,Pb)₈NaFe²⁺₄(SO₄)₅Cl₈. Full definition →