Titanite from Madison County, Montana, USA
USA | |
| Gobla, Michael J. (2012) Montana Mineral Locality Index. Rocks & Minerals, 87 (3) 208-240 doi:10.1080/00357529.2012.676825 Chris Tucker and John Betts specimens. |
| MBMG IC-24(Reid,1958) |
| keckgeology.org/files/pdf/symvol/4th/Montana/larson.pdf |
| Winchell, Alexander Newton (1914) Mining districts of the Dillon quadrangle, Montana, and adjacent areas. Bulletin Vol. 574. US Geological Survey doi:10.3133/b574 |