Hydroxyapophyllite-(K) from selected localities.
USA | |
| Joseph Freillich specimen; |
Meier, B. M. and Kearns, Lance E., 2011, Chemical Characterization of Northern Virginia Apophyllite, (K, Na)Ca4Si8)20(OH, F).8H2O, 38th Rochester Mineralogical Symposium Progran and Abstracts, p. 25-27. | |
Meier, B. M. and Kearns, Lance E., 2011, Chemical Characterization of Northern Virginia Apophyllite, (K, Na)Ca4Si8)20(OH, F).8H2O, 38th Rochester Mineralogical Symposium Progran and Abstracts, p. 25-27. |
Leesburg Quarry, Leesburg, Loudoun County, Virginia, USA