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2. Nakauriite from Unst, Shetland
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4. Some observations on the properties of dypingite, Mg5(CO3)4(OH)2·5H2O, and related minerals
5. Dunham, K. C. 1990. Geology of the Northern Pennine Orefield. Vol. 1. Tyne to Stainmore (2nd Edition). Economic Memoir of the British Geological Survey.