| Reference List: | Koenig (1888) Proceedings of the Academy of Sciences, Philadelphia: 192.
Koenig (1889) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 17: 85.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 953. |
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