The story
From Tremola San Gottardo in Switzerland, where found, + -ite.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A pale grey/green amphibole mineral, a type of asbestos, that is a mixed calcium and magnesium silicate, with the chemical formula Ca₂Mg₅Si₈O₂₂(OH)₂; sometimes used in place of common asbestos. Full definition →
From Tremola San Gottardo in Switzerland, where found, + -ite.
Etymology from Wiktionary, CC BY-SA 4.0.