Marmolite from Massachusetts, USA
USA | |
| Sears, John Henry (1894): Geological and Mineralogical Notes, No. 9 in Bulletin of the Essex Institute, volume XXVI. |
| Dana 4:284 (1854) |
| Clarke, F. W., (1904): Analysis of Rocks, Laboratory of the United States Geological Survey, 1880-1903. |