- Cheyenne Mining District (St. Peters Dome Mining District)
| Palache, Charles, Berman, Harry, Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Ect. John Wiley and Sons, New York. Cross, W., Hillebrand, W.F. (1883) On minerals of the cryolite group recently found in Colorado. American Journal of Science: 26: 271-294 (283). |