| Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Schrader, FC, Stone, RC, Sanford S. (1914) Useful minerals of the United States. Bulletin Vol. 585. US Geological Survey doi:10.3133/b585 Rogers, Austin Flint (1912), Notes on rare minerals from California: Columbia University, School of Mines Quarterly: 33: 381 |