chalybiteMin.|ˈkælɪbaɪt| [Named by Glöcker 1847; f.Gr. χάλυβ- steel + -ite.] A synonym of siderite, or native carbonate of iron. 1858Dana Min. 445 Chalybite occurs in many of the rock strata.1868Ibid. 691 Chalybite should yield to Haidinger's earlier name Siderite.