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Beraunite  | | | | Reference: | [T.G. Nijland, J.C. Zwaan, D. Visser, J. Leloux - De mineralen van Nederland - 2007] |
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Dopplerite  | | | | Reference: | [T.G. Nijland, J.C. Zwaan, D. Visser, J. Leloux - De mineralen van Nederland - 2007] |
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Pyrolusite  | | | | Reference: | [T.G. Nijland, J.C. Zwaan, D. Visser, J. Leloux - De mineralen van Nederland - 2007] |
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Vivianite  | | | | Description: | Occurs in the moors of the province. | | Reference: | [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: 745.] |
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