Feldspar Group from selected localities.
UK | |
| Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp. |
| Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp. |
| Dale Foster Collection |
UK | |
| Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp. |
| Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp. |
| Dale Foster Collection |