Hydrocarbons Wulfenite "wad" Vesigneite Vanadinite Tetrahedrite Symesite Sulphur "Sulphate-free symesite" Strontianite Sphalerite Smithsonite Sepiolite Scarbroite Saponite Sahlinite-like phase Sahlinite Romanechite Rickturnerite Rhodochrosite Quartz var. Chalcedony Quartz Pyromorpite Pyrolusite Pyrite Polianite Plumbonacrite Plumbogummite Plattnerite Phosgenite Pb-Si-S phase Pb-Oxychloride (wispy) Pb-Oxychloride (orange) in mereheadite Pb-Oxychloride (layered) Pb-Mn-Co-Cu-Na-Mg-Si-O phase fluoroxy-chloridePb (Pb2OF)Cl Ps-As-O-Cl phase 15:1:1 Parkinsonite Paralaurionite Otavite "Ochre" Nasonite Mottramite Molybdophyllite Minium Mimetite Mereheadite Melanterite Melanotekite Melaconite Marcasite Manganite Malachite Macedonite Matttheddleite Lorettoite Lizardite "Limonite" Leadhillite Laurionite Laumontite Kombatite-like phase Kombatite Kentrolite Kaolinite Hydrotalcite Hydromagnesite “Hydrocerussite” Hisingerite Hemimorphite Hedyphane Hausmannite Halloysite Greenockite Goethite Gibbsite Ganomalite Fornacite Fluorite Ferroceladonite Epidote Ecdemite Dundasite Duftite Dolomite Djurleite Diaboleite Descloizite Datolite Damaraite Cu-Cl phase Cuprite Cryptomelane Crednerite alteration phase AY phase"Crednerite" DPb) (Cu:Mn+ 1:8 phase"Crednerite" C (Cu:Mn 1:3) "Crednerite" phase B (Cu:Mn 1:1.33) phase"Crednerite" A (Cu:Mn 1:1) Covelline Cotunnite Coronadite Copper Cinnabar Chrysotile Chrysocolla Chloroxiphite Chlorite Chalcopyrite Chalcocite Cesarolite Cerussite Celestine Calcite var. manganocalcite Mg-calcite var. Calcite Calcite Brucite Braunite Blixite Bindheimite Barytocalcite Baryte Azurite Ardennite Aragonite Apophyllite Anglesite Alumohydrocalcite Allophane Ankerite Species Hematite "Psilomelane" Mendipite Lepidocrocite Key x x x x x x x x x x x x x x x x x x x x x Oxyhalide includes the now Bryant's defunct and RDC Quarries Vesigneite IMA 2010-034 X X X X F T x x x x x *

Macedonite Halide x x x x x x x x x Sulphide x x x x x x x x x x x x x x x x x x Carbonate Reported but not confirmed - we could not locate a valid specimen Reported – not seen by the authors, but reliably confirmed Redefined or refined during this study Needs checking or reconfirmation locality Type First locality where a new phase will has been found; become type locality the if phase is to be a new found mineral && accepted by the IMA Does not occur Confirmed by authors during our study Minerals first reported during the time that this study has been running, by multiple authors x x x Sulphate x x x x x x x x x x x x x x x x x x x Oxide x Sulphide New mineral / phase discredited occurrences minerals that we are convinced occur, but where there is insufficient material definitive for to proof be obtained x x x x x x x x x x x x x x x x x x x x silicate x x x x x x x As/V/Mo 04 x x Phosphate x x x x x x x x x x x Other x x x x x x Slag Minerals x x x x x x x x x x x x x x x x x x x x x x x x Ore and ore alteration x x x x x x x x x Gangue x x x x x x x Primary Hydrothermal x x x x x x x x x x x x Silicification products x x x x x x Silurian volcanics x x x x x x x x x x x x x x x Mn-oxide suite x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x

Mn pod contents x x x x x x Slag Minerals X X X X X X X X X X X X Batts Coombe Quarry X X * X X X X X X Buddles Wood () X X X X X X X Callow Rock Quarry X * Castle of Comfort X X X X X X X x * * * Charterhouse X X Chewton Mendip X * Chewton Warren X X X X T * * “Churchill” X X X X X X X X X X X X X X X X X X X X X X X X X X X X X * * * * * X Coley Mill, Hinton Blewitt X X X X X X X X X X X X X X X X X X X Coombe Farm X Didsbury X X X * Dolebury Hill X X Doulting Stone Quarry X X X X

Dulcote Quarry X X X X X X X X X X X X X X X X X X X X Durnford Quarry X X X X X X X X X X X X * X X X X X X X X X X X Green Ore X X Gurney Slade X X X

Halecombe Quarry X X X X X * * * * * * * Ham Woods X X X X X * Harptree X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X T T

* * Higher Pitts Farm + Mine X X X X X X X Holcombe Quarry X X X X Lambs Leer Caverns + Quarry X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X F T F F F F T T T F F ? x x x x * * * * * * * * * * Merehead Quarry X X X X X X X X X X X X X X

Moons Hill X X X X X X X X X X X X X X X X X X X X X X “” X X X X X X X X * Priddy Hill Farm X X Rodney Pitts (Chewton) X X X X X X X X X * X X X X X X X X X X *

Sandford Hill + Quarry X X X X X * * * X X X X X * Shute Shelf X St Cuthberts Smelter X X X X X X X X X X X X X X X X X X X X X Stancombe Lane X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X F F T

Wesley Mine X X Westbury-sub-Mendip X X X X X X X X * * X X X X X X X X X Wick Quarry

Table 1. A list of the minerals that occur in the Mendip manganese deposits, showing the suite to which they belong, and the localities where they have been found.

Journal of the Russell Society (2010)

JRS13 Mendips A3 foldout.indd 1 09/12/2010 16:02:13 Figure 2. The ‘relationship map’ describing the minerals of the Mendip manganese deposits. Journal of the Russell Society (2010)

JRS13 Mendips A3 foldout.indd 2 09/12/2010 16:02:14