| Reference List: | Proust (1787) Le Journal de physique et le radium, Paris: 30: 394.
Fourcroy (1789) Mem. Ac. Sc., Paris.
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.: 889. |
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