Phillipsite Subgroup from selected localities.
USA | |
| Tschernich, R. (1992): Zeolites of the World, 65 |
Tschernich, R. (1992): Zeolites of the World, p.114; Dunham, K.C. (1933) The American Mineralogist, 18, 369-385. | |
Tschernich, R. (1992): Zeolites of the World, 65 | |
American Mineralogist (1969) 54:182-197 |