Arma, M., Fleet, ME., and Barnett, R.L. (1985): Titanian berthierine: a Ti-rich serpentine group mineral from the Picton ultramafic dyke, Ontario. Canadian Mineralogist: 23: 213-220.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.