Biotite from selected localities.
USA | |
| Livingston, K. (2020). The Peralkaline Mount Rosa Granite: Contrasting Mineralogy and Geochemistry Observed in the Mount Rosa Granite, Pikes Peak Batholith, Colorado (Masters thesis, Colorado School of Mines). |
Rocks & Minerals (Sept. 2001) | |
Minerals of Colorado (1997) Eckel, E. B. |