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Burtree Slits, Cowshill, Weardale, North Pennines, Co. Durham, England, UK
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Detailed Mineral List:
Chalcopyrite
Formula: CuFeS2
Reference: B Young,, E K Hyslop and R A Fairbairn . Journal of the Russell Soc 6(2), 97 (1996)
Coronadite
Formula: Pb(Mn4+6Mn3+2)O16
Reference: B Young,, E K Hyslop and R A Fairbairn . Journal of the Russell Soc 6(2), 97 (1996)
Fluorite
Formula: CaF2
Photo: © HW. Fluorite from Burtree Slits, Cowshill, Weardale, North Pennines, Co. Durham, England, UK
Galena
Formula: PbS
Reference: B Young,, E K Hyslop and R A Fairbairn . Journal of the Russell Soc 6(2), 97 (1996)
Goethite
Formula: α-Fe3+O(OH)
Reference: B Young,, E K Hyslop and R A Fairbairn . Journal of the Russell Soc 6(2), 97 (1996)
'Limonite'
Formula: FeO(OH) · nH2O
Reference: B Young,, E K Hyslop and R A Fairbairn . Journal of the Russell Soc 6(2), 97 (1996)
Marcasite
Formula: FeS2
Reference: B Young,, E K Hyslop and R A Fairbairn . Journal of the Russell Soc 6(2), 97 (1996)
Quartz
Formula: SiO2
Reference: B Young,, E K Hyslop and R A Fairbairn . Journal of the Russell Soc 6(2), 97 (1996)
Siderite
Formula: FeCO3
Sphalerite
Formula: ZnS
Reference: B Young,, E K Hyslop and R A Fairbairn . Journal of the Russell Soc 6(2), 97 (1996)
Thaumasite
Formula: Ca3(SO4)[Si(OH)6](CO3) · 12H2O
Description: Crusts of soft, white spherules up to 0.25 mm
Reference: young B, Hyslop E K, Bridges T F and Hubbard N. Thaumasite from High Sedling Mine, Weardale, Co Durham and from Shap, Cumbria, England. Journal of the Russell Soc. 7(1), 40 (1998)


11 entries listed. 10 valid minerals.
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