Ulvöspinel from
Canada | |
| Schilling, J., Frost, B. R., Marks, M. A. W., Wenzel, T., Markl, G. (2011) Fe-Ti oxide-silicate (QUIlF-type) equilibria in feldspathoid-bearing systems. American Mineralogist, 96 (1) 100-110 doi:10.2138/am.2011.3596 |
| Sharon Cisneros (pers comm) |