| Reference List: | Gautier (1893) Comptes rendu de l’Académie des sciences de Paris: 116: 928, 102, 1171, 1271.
Gautier (1894) Annales des mines: 5: 23.
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.: 999.
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