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USA | |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. Moore, P. B., Araki, T., Kampf, A. R. (1980): Nomenclature of the phosphoferrite structure type: refinements of landesite and kryzhanovskite. Mineralogical Magazine, 43, 789-795. |
| www.mindat.org (n.d.) https://www.mindat.org/photo-1038084.html Id, analysis by Al. Falster MP2 Group at MMGM Lab. |
Berry-Havey Quarry, Poland, Androscoggin County, Maine, USA