Goldsmith, J.R., D.L. Graf, J. Witters & D.A. Northrop (1962), Studies in the system CaCO3•MgCO3•FeCO3: (1) Phase relations; (2) A method for major element spectrochemical analyses; and (3) Composition of some ferroan dolomites Jour. Geol.: 70: 659-688.
(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.