Braunite from St. Lawrence County, New York, USA
USA | |
| The New York State Museum Catalog No. 12684 |
Peterson, E.U., Anovitz, L.M., Essene, E.J. (1984) Donpeacorite, (Mn,Mg)MgSi2O6 a new orthopyroxene and its proposed phase relations in the system MnSiO3-MgSiO3-FeSiO3. American Mineralogist: 69: 472-480. | |
| Canadian Mineralogist Vol. 22, pp. 327-331 (1984) |