| Clark, Andrew, Stokman, A.H.W. (1985) Mineralen. Alphen aan den Rijn: Atrium. 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. |
Horní Slavkov, Sokolov District, Karlovy Vary Region, Czech Republic