Oligoclase from selected localities.
USA | |
| The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): Plate 39. |
| Russell, DE "The Minerals of Fort George, Manhattan" http://www.mindat.org/article.php/477/The+Minerals+of+Fort+George%2C+Manhattan |