Catapleiite

Catapleiite (Na2ZrSi3O9•2H2O) is a dimorph of Gaidonnayite rarely found by itself. Its name derives from the greek words “κατα” (kata) and “πλειον” (pleion) meaning “with more” as it is mostly accompanied by a number of rare minerals. When pure it is colorless, but it is most often seen as a tan, brownish-red, light yellow, dark brown, flesh red or orangish in color. It is mostly found on Låven Island, Norway. Its hardness on the Mohs Scale is around 5 1/2-6. It has a monoclinic crystal system.[1][2]

Catapleiite.Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada