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Devon, England, UKi
Regional Level Types
DevonCounty
EnglandConstituent Country
UKCountry

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Locality type:
Largest Settlements:
PlacePopulation
Plymouth260,203 (2017)
Exeter117,763 (2017)
Torquay65,388 (2017)
Paignton49,886 (2011)
Newton Abbot36,474 (2018)
Exmouth34,432 (2018)
Other Languages:
French:
Devon, Angleterre, Royaume-Uni
German:
Devon, England, Vereinigtes Königreich
Italian:
Devon, Inghilterra, Regno Unito
Russian:
Девон, Англия, Великобритания
Simplified Chinese:
德文郡, 英格兰, 英国
Spanish:
Devon, Inglaterra, Reino Unido
Afrikaans:
Devon, Engeland, Verenigde Koninkryk
Anglo-Saxon:
Defenascīr, Englaland, Geāned Cynerīce
Arabic:
ديفون, إنجلترا, المملكة المتحدة
Aragonese:
Devon, Anglaterra, Reino Unito
Asturian:
Devon, Inglaterra, Reinu Xuníu
Azeri:
Devon, İngiltərə, Böyük Britaniya
Basque:
Devon, Ingalaterra, Erresuma Batua
Belarusian:
Дэваншыр, Англія, Вялікабрытанія
Breton:
Devon, Bro-Saoz, Rouantelezh-Unanet
Bulgarian:
Девън, Англия, Обединено кралство Великобритания и Северна Ирландия
Catalan:
Devon, Anglaterra, Regne Unit
Cornish:
Dewnens, Pow Sows, Ruwvaneth Unys
Croatian:
Devon, Engleska, Ujedinjeno Kraljevstvo
Czech:
Devon, Anglie, Spojené království
Danish:
Devon, England, Storbritannien
Dutch:
Devon, Engeland, Verenigd Koninkrijk
Egyptian Arabic:
ديڤون, انجلترا, المملكه المتحده
Esperanto:
Devon, Anglio, Unuiĝinta Reĝlando
Estonian:
Devoni krahvkond, Inglismaa, Suurbritannia
Farsi/Persian:
دوون, انگلستان, بریتانیا
Finnish:
Devon, Englanti, Yhdistynyt kuningaskunta
Galician:
Devon, Inglaterra, Reino Unido
Greek:
Ντέβον, Αγγλία, Ηνωμένο Βασίλειο
Hakka:
Devon, England, Yîn-koet
Hebrew:
דבון, אנגליה, הממלכה המאוחדת
Hindi:
डेवन, इंग्लैण्ड, यूनाइटेड किंगडम
Hungarian:
Devon, Anglia, Egyesült Királyság
Icelandic:
Devon, England, Bretland
Ido:
Devon, Anglia, Unionita Rejio
Indonesian:
Devon, Inggris, Britania Raya
Interlingua:
Devon, Anglaterra, Regno Unite
Irish Gaelic:
Devon, Sasana, An Ríocht Aontaithe
Japanese:
デヴォン, イングランド, イギリス
Korean:
데번주, 잉글랜드, 영국
Latin:
Devonia, Anglia, Britanniarum regnum
Latvian:
Devona, Anglija, Apvienotā Karaliste
Lithuanian:
Devonas, Anglija, Jungtinė Karalystė
Luxembourgish:
Devon, England, Vereenegt Kinnekräich
Malayalam:
ഡെവൺ, ഇംഗ്ലണ്ട്, യുണൈറ്റഡ് കിങ്ഡം
Manx:
Devon, Sostyn, Reeriaght Unnaneysit
Marathi:
डेव्हॉन, इंग्लंड, युनायटेड किंग्डम
Mirandese:
Devon, Reino Ounido
Northern Frisian:
Devon, Ingelun, Feriind Kiningrik
Norwegian:
Devon, England, Storbritannia
Norwegian (Nynorsk):
Devon, England, Storbritannia
Ossetian:
Девон, Англис, Стыр Британи
Polish:
Devon, Anglia, Wielka Brytania
Portuguese:
Devon, Inglaterra, Reino Unido
Quechua:
Devon, Inlatirra, Hukllachasqa Qhapaq Suyu
Romanian:
Devon, Anglia, Regatul Unit al Marii Britanii și al Irlandei de Nord
Scots:
Devon, Ingland, Unitit Kinrick
Serbian:
Девон, Енглеска, Уједињено Краљевство
Serbo-Croatian:
Devon, Engleska, Ujedinjeno Kraljevstvo
Sicilian:
Devon, Nglaterra, Regnu Unitu
Slovak:
Devon, Anglicko, Spojené kráľovstvo
Slovenian:
Devon, Anglija, Združeno kraljestvo Velike Britanije in Severne Irske
Swedish:
Devon, England, Storbritannien
Thai:
เดวอน, ประเทศอังกฤษ, สหราชอาณาจักร
Traditional Chinese:
德雲郡, 英倫, 英國
Turkish:
Devon, İngiltere, Birleşik Krallık
Ukrainian:
Девон, Англія, Велика Британія
Urdu:
ڈیون, انگلستان, مملکت متحدہ
Uyghur:
Déwonshir, بۈيۈك بېرىتانىيە
Vietnamese:
Devon, Anh, Vương quốc Liên hiệp Anh và Bắc Ireland
Volapük:
Devon, Linglän, Regän Pebalöl
Waray:
Devon, Inglaterra, Reino Unido
Welsh:
Dyfnaint, Lloegr, Y Deyrnas Unedig
West Frisian:
Devon, Ingelân, Feriene Keninkryk
Western Punjabi:
ڈیون, انگلستان, برطانیہ
Wu Chinese:
德文郡, 英格兰, 英国
Yiddish:
דעוון, ענגלאנד, פאראייניגטע קעניגרייך


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Regions containing this locality

Eurasian PlateTectonic Plate
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Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

266 valid minerals. 2 (TL) - type locality of valid minerals. 4 erroneous literature entries.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Detailed Mineral List:

''
Localities:
Acanthite
Formula: Ag2S
Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Localities: Reported from at least 8 localities in this region.
Aikinite
Formula: PbCuBiS3
Reference: UKJMM Vol.25 p.19; UKJMM Vol.29 p.49-52
Ajoite ?
Formula: (K,Na)Cu7AlSi9O24(OH)6 · 3H2O
Reference: https://www.mindat.org/mesg-7-61822.html
Albite
Formula: Na(AlSi3O8)
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Reference: Russell, A. (1910): Mineralogical Magazine 15, 377-384
Algodonite
Formula: (Cu1-xAsx)
Reference: from XRD and EPMA results - B. Smith; Kemp, A.J., Palmer, M.R., and Ragnarsdottir, K.V. (1994) The uranium-thorium and rare earth element geochemistry of reduction nodules from Budleigh Salterton, Devon. Proceedings of the Ussher Society, Volume 8, Part 3, 214-218.
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Reference: UKJMM Vol.29 p.49-52
Allophane
Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Localities: Reported from at least 8 localities in this region.
Aluminite
Formula: Al2(SO4)(OH)4 · 7H2O
Reference: http://www.mineralman.f9.co.uk/quarries/meldon.htm
'Alumotungstite'
Formula: 2W2O6(H2O)
Reference: Bernard & Hyrsl (2004) Minerals and their Localities. (Granit, Prague); Steve Rust, Richard de Nul, and Gunnar Färber specimens.
Amblygonite
Formula: LiAl(PO4)F
Reference: Kingsbury, A.W.G. (1964) in 'Present views on some aspects of the geology of Cornwall and Devon' (Roy. geol. Soc. Cornwall), p. 249; Moss, A.A., Fejer, E.E. and Embrey, P.G. (1969) On the X-Ray Identification of Amblygonite and Montebrasite. Mineralogical Magazine, 37(287), 414-422.; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, 42(322), 169-177.; von Knorring, O. and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48(348), 443-448.; http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
'Amblygonite-Montebrasite Series'
Reference: von Knorring, O., and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, vol. 48, n° 348, 443-448.
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Amphibole Supergroup var: Byssolite'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Anatase
Formula: TiO2
Localities: Reported from at least 13 localities in this region.
Andalusite
Formula: Al2(SiO4)O
Andalusite var: Chiastolite
Formula: Al2(SiO4)O
Andersonite
Formula: Na2Ca(UO2)(CO3)3 · 6H2O
Habit: Distorted rhombohedra, indistinct; also massive, encrusting
Colour: Yellowish
Fluorescence: Reacts strongly to Long Wave UV light, emitting a diagnostic bluish-green.
Description: Sparse, microscopic grains scattered across weathered surfaces associated with other fluorescent material. Visible as tiny points of blue-green fluorescence under Long Wave UV. Only observable at x45 and above.
Reference: Alysson Rowan Collection
Andradite
Formula: Ca3Fe3+2(SiO4)3
Anglesite
Formula: PbSO4
Localities: Reported from at least 6 localities in this region.
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Localities: Reported from at least 9 localities in this region.
Annabergite
Formula: Ni3(AsO4)2 · 8H2O
Description: Article in the Russell Society newsletter (2000). All have been confirmed by XRD from my own specimens. There are also articles on the Native Copper, etc from Dr. R. K.Harrison et al.
Reference: Brian Craik-Smith collection
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
Reference: Van King
Anthophyllite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Reference: [Specimen in the Natural History Museum, London]
Antimony
Formula: Sb
Reference: von Knorring, O., and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, vol. 48, n° 348, 443-448.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Localities: Reported from at least 10 localities in this region.
'Apatite var: Collophane'
Reference: Proudfoot, V.B. (1958): Mineralogical Magazine 31, 344-345; Braithwaite, R.S.W., and Cooper, B.V. (1982): Mineralogical Magazine 46, 119-126
'Apophyllite'
Reference: Symes, R.F. (1977) Datolite and apophyllite from the Mendips. Mineralogical Magazine: 41 (319): 410-411.
Aragonite
Formula: CaCO3
Localities: Reported from at least 28 localities in this region.
Arsenic
Formula: As
Reference: von Knorring, O., and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, vol. 48, n° 348, 443-448.
Arseniosiderite
Formula: Ca2Fe3+3(AsO4)3O2 · 3H2O
Reference: Kingsbury, A.W.G. and Hartley, J. (1957) New occurrences of arseniosiderite. Mineralogical Magazine, vol. 31, n° 237, 499-500.; Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV.
Arsenolite
Formula: As2O3
Localities: Reported from at least 6 localities in this region.
Arsenopyrite
Formula: FeAsS
Localities: Reported from at least 46 localities in this region.
'Asbestos'
Reference: Solly, R.H. (1888): Mineralogical Magazine 6, 202-211
Atacamite
Formula: Cu2(OH)3Cl
Reference: XRD from NHM London
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Reference: Paul Render
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Axinite-(Fe)
Formula: Ca2Fe2+Al2BSi4O15OH
'Axinite Group'
Localities: Reported from at least 6 localities in this region.
Azurite
Formula: Cu3(CO3)2(OH)2
Localities: Reported from at least 7 localities in this region.
Baryte
Formula: BaSO4
Localities: Reported from at least 13 localities in this region.
Bassetite ?
Formula: Fe2+(UO2)2(PO4)2 · 10H2O
Habit: Somewhat earthy in appearance
Colour: dun-coloured
Fluorescence: none
Description: Inferred presence of Bassetite comes from the presence of a non-fluorescent, dun-coloured, earthy encrustation in direct contact with uraninite and weathered pyrite grains in the granite.
Reference: Alysson Rowan Collection
Bavenite
Formula: Ca4Be2Al2Si9O26(OH)2
Beaverite-(Cu)
Formula: Pb(Fe3+2Cu)(SO4)2(OH)6
Reference: Braithwaite, R.S.W., and Cooper, B.V. (1982): Mineralogical Magazine 46, 119-126
Becquerelite ?
Formula: Ca(UO2)6O4(OH)6 · 8H2O
Habit: Indeterminate - semi-crustose.
Colour: brownish-yellow, appears very pale due to size of crystals.
Fluorescence: Reacts under Long Wave UV: dim brownish orange
Description: Appears as sparse, somewhat earthy encrustations of miniscule, brownish-yellow crystals on more exposed and weathered surfaces. As with other uranium minerals, this is associated with the weathering of uraninite in the granite. Crystals are transparent and sufficiently small to give the impression of a pale colouration at moderate magnification (x45).
Reference: Alysson Rowan Collection Robbins, M. The collector's book of fluorescent minerals. ISBN 978-1-4757-4794-2 DOI 10.1007/978-1-4757-4792-8
Bementite
Formula: Mn7Si6O15(OH)8
Reference: No reference listed
Beryl
Formula: Be3Al2(Si6O18)
Beryllonite
Formula: NaBePO4
Description: Kingsbury, A.W.G. (1964) in Mineralogical Magazine 35, lviii states: "Colourless isolated crystals (2cm) from a pegmatite vein in the old aplite quarry at Meldon, Okehampton, Devon". However, von Knorring, O. and Condliffe, E. (1984): On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine 48, 443-448, states "Beryllonite occurs in whitish grains some 2 mm across and is mostly enclosed in elbaite with some lepidolite and quartz. It is fibrous and silky in appearance and is closely associated with pollucite, orthoclase, petalite, and lepidolite." 2cm vs. 2mm...
Reference: Kingsbury, A.W.G. (1964) Mineralogical Magazine 35, lvii.; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, 42(322), 169-177 (referring to Kingsbury).; von Knorring, O. and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine 48, 443-448 (referring to Kingsbury).; http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi; http://www.handbookofmineralogy.org/pdfs/beryllonite.pdf
'Bindheimite'
Formula: Pb2Sb2O6O
Description: Forms resinous to powdery pale yellow replacements of Tetrahedrite.
Reference: Steve Rust Collection
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Bismite
Formula: Bi2O3
Reference: UKJMM Vol.25 p.19; UKJMM Vol.29 p.49-52
Bismuth
Formula: Bi
Localities: Reported from at least 6 localities in this region.
Bismuthinite
Formula: Bi2S3
Bismutite
Formula: (BiO)2CO3
Reference: Paul Render
'Bitumen'
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 108
Boltwoodite
Formula: (K,Na)(UO2)(SiO3OH) · 1.5H2O
Habit: Radial acicular groups to ~0.3mm across; also earthy, encrusting.
Colour: Yellowish-brown to dull orange
Fluorescence: Reacts weakly under Long Wave UV, emitting a dull brownish colour.
Description: Minute earthy crusts in miarolitic cavities associated with uraninite, also with gummite crusts.
Reference: Alysson Rowan Collection
Bornite
Formula: Cu5FeS4
Localities: Reported from at least 10 localities in this region.
Boulangerite
Formula: Pb5Sb4S11
Bournonite
Formula: PbCuSbS3
Brandtite ?
Formula: Ca2Mn2+(AsO4)2 · 2H2O
Description: Fraudulent Kingsbury locality.
Brochantite
Formula: Cu4(SO4)(OH)6
Localities: Reported from at least 11 localities in this region.
Brookite
Formula: TiO2
Bustamite
Formula: CaMn2+(Si2O6)
Reference: http://www.mineralman.f9.co.uk/quarries/meldon.htm ; BMS Database; Mineralogical Magazine 1966 35 : 991-994.
Cacoxenite
Formula: Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Habit: massive, botryoidal, encrusting
Colour: yellow
Description: Cacoxenite is found as a bright yellow encrustation in fractures in the rock of the quarry, often in association with porous quartz veins. Where it is found, it is locally abundant but is absent through most of the quarry. Larger plates showing the phosphatic mineralisation vary across the suface between clove-brown and bright yellow, occasionally to orange and red. The cacoxenite is generally between a deep yellow-brown and bright yellow.
Reference: Alysson Rowan Collection
Calcite
Formula: CaCO3
Localities: Reported from at least 51 localities in this region.
Calcite var: Ferroan Calcite
Formula: (Ca,Fe)CO3
Calcite var: Manganoan Calcite
Formula: (Ca,Mn)CO3
Reference: Russell, A. (1946). On rhodonite and tephroite from Treburland manganese mine, Altarnun, Cornwall; and on rhodonite from other localities in Cornwall and Devonshire. Mineralogical Magazine, 27(194), 221-235.
Carbonatecyanotrichite
Formula: Cu4Al2(CO3,SO4)(OH)12 · 2H2O
Reference: No reference listed
Carnotite
Formula: K2(UO2)2(VO4)2 · 3H2O
Reference: Kemp, A.J., Palmer, M.R., and Ragnarsdottir, K.V. (1994) The uranium-thorium and rare earth element geochemistry of reduction nodules from Budleigh Salterton, Devon. Proceedings of the Ussher Society, Volume 8, Part 3, 214-218.; Milodowski, A.E., Styles, M.T., Horstwood, M.S.A., and Kemp, S.J. (2002) Alteration of uraniferous and native copper concretions in the Permian mudrocks of [Littleham Cove, near Budleigh Salterton] South Devon, United Kingdom: A natural analogue study of the corrosion of copper canisters and radiolysis effects in a repository for spent nuclear fuel. Technical Report, TR-02-09 for SKB, Svensk Karnbranslehantering AB, Swedish Nuclear Fuel and Waste Management Co., Stockholm, Sweden.
Cassiterite
Formula: SnO2
Localities: Reported from at least 51 localities in this region.
Cassiterite var: Wood Tin
Formula: SnO2
Reference: W. A. E. Usshee (1912) The geology of the country around Ivybridge and Modbury. Explanation of Sheet 349
Celestine
Formula: SrSO4
Cerussite
Formula: PbCO3
Localities: Reported from at least 11 localities in this region.
'Chabazite'
Chalcoalumite
Formula: CuAl4(SO4)(OH)12 · 3H2O
Reference: Braithwaite, R.S.W., and Cooper, B.V. (1982): Mineralogical Magazine 46, 119-126
Chalcocite
Formula: Cu2S
Localities: Reported from at least 18 localities in this region.
Chalcophyllite
Formula: Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O
Reference: No reference listed
Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 69 localities in this region.
Chalcosiderite
Formula: CuFe3+6(PO4)4(OH)8 · 4H2O
Reference: No reference listed
Chamosite
Formula: (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Reference: http://www.mineralman.f9.co.uk/quarries/meldon.htm
Chamosite var: Corundophilite
Formula: (Mg,Fe,Al)6(Si,Al)4O10(OH)8
Reference: http://www.mineralman.f9.co.uk/quarries/meldon.htm
Childrenite (TL)
Formula: Fe2+Al(PO4)(OH)2 · H2O
Localities: Reported from at least 20 localities in this region.
Type Locality: Devon, England, UK
Reference: American Mineralogist (1950): 35: 793; 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: 938; Lapis 11 (1986), 7.
'Chlorite Group'
Localities: Reported from at least 24 localities in this region.
Chrisstanleyite (TL)
Formula: Ag2Pd3Se4
Type Locality:
Reference: Mineralogical Magazine(1998) 62, 257-264
Chrysoberyl ?
Formula: BeAl2O4
Description: Green crystal plates ( < 2 cm) with feldspar.
Reference: Kingsbury, A.W.G. (1964) Mineralogical Magazine 35, lvii; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, 42(322), 169-177 (referring to Kingsbury).; von Knorring, O., and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48(348), 443-448 (referring to Kingsbury).; http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
Clausthalite
Formula: PbSe
Clinoclase
Formula: Cu3(AsO4)(OH)3
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: 789; BMS Collection
Cobaltite
Formula: CoAsS
Coffinite
Formula: U(SiO4) · nH2O
'Columbite-(Fe)-Columbite-(Mn) Series'
Reference: BMS Database
Columbite-(Mn)
Formula: Mn2+Nb2O6
Reference: http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi; von Knorring, O. and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48(348), 443-448.
'Columbite-Tantalite'
Reference: von Knorring, O. (1951) A Note on the Occurrence of Columbite in the Meldon Aplite, Devonshire. Mineralogical Magazine, vol. 29, n° 215, 799-801.; von Knorring, O., and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, vol. 48, n° 348, 443-448.
Connellite
Formula: Cu19(SO4)(OH)32Cl4 · 3H2O
Description: Tiny micro-radial blue compact crystal groups with bladed emerald green Brochantite microcrystals on metallic dark grey Chalcocite/Digenite in a Quartz/Hematite/Goethite matrix with minor Malachite.
Reference: S Rust Collection
Copper
Formula: Cu
Localities: Reported from at least 8 localities in this region.
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: McLintock, W.F.P. (1923) On the occurrence of petalite and pneumatolytic apatite in the Meldon aplite, Okehampton, Devonshire. Mineralogical Magazine, 20(103), 140-150.; http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
Cornubite
Formula: Cu5(AsO4)2(OH)4
Cornwallite
Formula: Cu5(AsO4)2(OH)4
Cotunnite
Formula: PbCl2
Reference: No reference listed
Covellite
Formula: CuS
Cuprite
Formula: Cu2O
Localities: Reported from at least 8 localities in this region.
Cuprite var: Chalcotrichite
Formula: Cu2O
Reference: Collection Richard De Nul
Cyanotrichite
Formula: Cu4Al2(SO4)(OH)12 · 2H2O
Reference: No reference listed
Danburite
Formula: CaB2Si2O8
Datolite
Formula: CaB(SiO4)(OH)
Devilline
Formula: CaCu4(SO4)2(OH)6 · 3H2O
Reference: No reference listed
Dickite
Formula: Al2(Si2O5)(OH)4
Reference: No reference listed
Digenite
Formula: Cu9S5
Diopside
Formula: CaMgSi2O6
Diopside var: Diallage
Formula: CaMgSi2O6
Reference: Russell, A. (1910): Mineralogical Magazine 15, 377-384
Djurleite
Formula: Cu31S16
Reference: Brian Craik-Smith collection
Dolomite
Formula: CaMg(CO3)2
Localities: Reported from at least 24 localities in this region.
Domeykite
Formula: Cu3As
Reference: from XRD and EPMA results - B. Smith
Dufrénite ?
Formula: Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O
Description: Kingsbury reference.
Reference: Kingsbury, A.W.G. (1957) Rockbridgeite from Cornwall and Devon. Mineralogical Magazine, vol. 31, n° 236, 429-430.
Dumortierite
Formula: (Al,Fe3+)7(SiO4)3(BO3)O3
Reference: [Specimen in the Natural History Museum, London]
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Chaudhry, M.N. and Howie, R.A. (1976) Lithium Tourmalines from the Meldon Aplite, Devonshire, England. Mineralogical Magazine vol. 40, n° 315, 747-751 [the analysis of 4 "rubellite" and 3 "verdelite" specimens from the locality identified both "colour varieties" as elbaite].; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, vol. 42, n° 322, 169-177.; von Knorring, O., and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, vol. 48, n° 348, 443-448.
Eleonorite ?
Formula: Fe3+6(PO4)4O(OH)4 · 6H2O
Habit: Massive, bladed masses.
Colour: reddish-brown to clove brown
Description: Some reddish-brown areas of a small number of specimens show the bladed forms resembling those of eleonorite. Further work is required for confirmation.
Reference: Alysson Rowan Collection
Emplectite
Formula: CuBiS2
Reference: UKJMM Vol.29 p.49-52
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Erythrite
Formula: Co3(AsO4)2 · 8H2O
Localities: Reported from at least 8 localities in this region.
Eucairite
Formula: AgCuSe
Reference: [Camm, 1995, 71 - "Gold in the Counties of Cornwall and Devon"]; C. J. Stanley, A. J. Criddle and D. Lloyd (1990) Precious and Base Metal Selenide Mineralization at Hope's Nose, Torquay, Devon. Mineralogical Magazine 54:485-493
Euclase ?
Formula: BeAl(SiO4)(OH)
Description: Fraudulent Kingsbury locality.
Eucryptite ?
Formula: LiAlSiO4
Reference: Fraudulent Kingsbury locality.
Eudidymite ?
Formula: Na2Be2Si6O15 · H2O
Description: Fraudulent Kingsbury locality.
Reference: Kingsbury, A.W.G. (1964) Mineralogical Magazine, 35, lvii.; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, 42(322), 169-177 (referring to Kingsbury).; von Knorring, O. and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48(348), 443-448 (referring to Kingsbury).; http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
'Feldspar Group'
'Feldspar Group var: Perthite'
Reference: http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
Ferberite
Formula: FeWO4
Ferro-actinolite
Formula: ☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Reference: http://www.mineralman.f9.co.uk/quarries/meldon.htm
Fersmite
Formula: (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
Reference: von Knorring, O., and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, vol. 48, n° 348, 443-448.
Fischesserite
Formula: Ag3AuSe2
Reference: [Camm, 1995, 71 - "Gold in the Counties of Cornwall and Devon"]; C. J. Stanley, A. J. Criddle and D. Lloyd (1990) Precious and Base Metal Selenide Mineralization at Hope's Nose, Torquay, Devon. Mineralogical Magazine 54:485-493
Fluorapatite
Formula: Ca5(PO4)3F
Localities: Reported from at least 19 localities in this region.
Fluorapatite var: Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Localities: Reported from at least 17 localities in this region.
Fluorite
Formula: CaF2
Localities: Reported from at least 26 localities in this region.
Galena
Formula: PbS
Localities: Reported from at least 44 localities in this region.
Galena var: Argentiferous Galena
Formula: PbS
Galenobismutite ?
Formula: PbBi2S4
Reference: http://www.minerals.f9.co.uk/minloc/meldon/meldon.htm
'Ganomatite'
Reference: [Specimen in the Natural History Museum, London]
'Garnet Group'
Formula: X3Z2(SiO4)3
Localities: Reported from at least 8 localities in this region.
Gersdorffite
Formula: NiAsS
Reference: UKJMM Vol.25 p.19; UKJMM Vol.29 p.49-52
Gibbsite
Formula: Al(OH)3
Reference: http://www.mineralman.f9.co.uk/quarries/meldon.htm
'Glauconite'
Formula: (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Goethite
Formula: α-Fe3+O(OH)
Localities: Reported from at least 27 localities in this region.
Gold
Formula: Au
Localities: Reported from at least 8 localities in this region.
Gold var: Palladian Gold
Formula: (Au,Pd)
Reference: Mineralogical Magazine 1982 46 : 371-377; C. J. Stanley, A. J. Criddle and D. Lloyd (1990) Precious and Base Metal Selenide Mineralization at Hope's Nose, Torquay, Devon. Mineralogical Magazine 54:485-493
Goslarite
Formula: ZnSO4 · 7H2O
Reference: [Specimen in collection of Natural History Museum, London]
Grossular
Formula: Ca3Al2(SiO4)3
'Gummite'
Habit: Massive
Colour: Brownish - may be mistaken for iron-stains.
Description: Brown haloes associated with uraninite, often dusted with Saléeite.
Reference: Alysson Rowan Collection
Gypsum
Formula: CaSO4 · 2H2O
Localities: Reported from at least 14 localities in this region.
Gypsum var: Selenite
Formula: CaSO4 · 2H2O
Reference: Paul Render
Hastingsite
Formula: {Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Reference: BMS collection
Hausmannite
Formula: Mn2+Mn3+2O4
Reference: Bernie Millington Collection
Hedenbergite
Formula: CaFe2+Si2O6
Helvine
Formula: Be3Mn2+4(SiO4)3S
Reference: Kingsbury, A.W.G. (1961) Beryllium Minerals in Cornwall and Devon: Helvine, Genthelvite, and Danalite. Mineralogical Magazine, 32(255), 921-940.; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, 42(322), 169-177 (referring to Kingsbury).; http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
Hematite
Formula: Fe2O3
Localities: Reported from at least 60 localities in this region.
Hematite var: Specularite
Formula: Fe2O3
Localities: Reported from at least 11 localities in this region.
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Herderite
Formula: CaBePO4(F,OH)
Reference: von Knorring, O., and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, vol. 48, n° 348, 443-448.
'Heulandite subgroup'
'Hornblende'
Huemulite
Formula: Na4Mg(V10O28) · 24H2O
Reference: Brian Craik-Smith collection (NHM London XRD ID)
Hydrokenoelsmoreite
Formula: 2W2O6(H2O)
Description: Occasionally found associated with ferberite or near to this mineral. Hydrokenoelsmoreite is very esaly over looked at this location due to its mica like habit, or looks like kaolinite. Thin platy micro-crystals have been found covering several cms. The colour varies from white to light yellow and pale brown, probably due to Fe contamination.
Reference: Mills, S.J., Christy, A.G., Rumsey, M.S., Spratt, J. (2016): The crystal chemistry of elsmoreite from the Hemerdon (Drakelands) mine, UK: hydrokenoelsmoreite-3C and hydrokenoelsmoreite-6R. Mineralogical Magazine, 80, 1195-1203.
Hydrokenoelsmoreite var: Ferritungstite
Reference: Steve Rust and Richard de Nul specimens.
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Ikunolite
Formula: Bi4(S,Se)3
Reference: UKJMM Vol.25 p.19; UKJMM Vol.29 p.49-52
Ilmenite
Formula: Fe2+TiO3
Ilvaite
Formula: CaFe3+Fe2+2(Si2O7)O(OH)
Isomertieite
Formula: Pd11Sb2As2
Reference: [Camm, 1995, 71 - "Gold in the Counties of Cornwall and Devon"]; Mineralogical Magazine 1982 46 : 371-377; C. J. Stanley, A. J. Criddle and D. Lloyd (1990) Precious and Base Metal Selenide Mineralization at Hope's Nose, Torquay, Devon. Mineralogical Magazine 54:485-493
Jamesonite
Formula: Pb4FeSb6S14
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Johannsenite
Formula: CaMn2+Si2O6
Reference: [Specimen in the Natural History Museum, London]
Kaolinite
Formula: Al2(Si2O5)(OH)4
'K Feldspar'
Reference: von Knorring, O., and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, vol. 48, n° 348, 443-448.
Klockmannite
Formula: CuSe
Reference: [Camm, 1995, 71 - "Gold in the Counties of Cornwall and Devon"]; C. J. Stanley, A. J. Criddle and D. Lloyd (1990) Precious and Base Metal Selenide Mineralization at Hope's Nose, Torquay, Devon. Mineralogical Magazine 54:485-493
Langisite
Formula: (Co,Ni)As
Reference: from XRD and EPMA results - B. Smith
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
Localities: Reported from at least 10 localities in this region.
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Lavendulan
Formula: NaCaCu5(AsO4)4Cl · 5H2O
Lead
Formula: Pb
Leadhillite ?
Formula: Pb4(CO3)2(SO4)(OH)2
Description: Forms tiny colourless to white micro-crystals <0.2mm associated with Anglesite and Cerussite in corroded Galena and Quartz. The crystals have not been analysed so could be Susannite.
Reference: Steve Rust Collection
Lepidocrocite
Formula: γ-Fe3+O(OH)
'Lepidolite'
Leucophanite ?
Formula: NaCaBeSi2O6F
Reference: Fraudulent Kingsbury locality.
Libethenite
Formula: Cu2(PO4)(OH)
'Limonite'
Formula: (Fe,O,OH,H2O)
Localities: Reported from at least 28 localities in this region.
Linarite
Formula: PbCu(SO4)(OH)2
Löllingite
Formula: FeAs2
Localities: Reported from at least 9 localities in this region.
Magnetite
Formula: Fe2+Fe3+2O4
Malachite
Formula: Cu2(CO3)(OH)2
Localities: Reported from at least 33 localities in this region.
Malayaite
Formula: CaSn(SiO4)O
'Manganese Oxides'
'Manganese Oxides var: Manganese Dendrites'
Habit: Dendritic - coarsely crystalline to lacy dendritic encrustations.
Colour: Black
Description: The development of manganese dendrites is particularly varied in this quarry - ranging from coarse, tangible crystals infilling fracture voids down to delicate, mossy developments across the siltstone surfaces. In places, these developments do present a particular aesthetic appeal.
Reference: Alysson Rowan Collection
Manganite
Formula: Mn3+O(OH)
Manganosite
Formula: MnO
Reference: Bernie Millington Collection
Marcasite
Formula: FeS2
Marialite
Formula: Na4Al3Si9O24Cl
Reference: http://www.mineralman.f9.co.uk/quarries/meldon.htm
Maucherite
Formula: Ni11As8
Description: Brian Craik-Smith: "Article in the Russell Society newsletter (2000). All have been confirmed by XRD from my own specimens. There are also articles on the native copper, etc. from Dr. R.K. Harrison et al."
Reference: Brian Craik-Smith collection; Harrison, R.K. (1975) Bulletin of the Geological Survey of Great Britain, 52, 15.; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, vol. 42, n° 322, 169-177.; Kemp, A.J., Palmer, M.R., and Ragnarsdottir, K.V. (1994) The uranium-thorium and rare earth element geochemistry of reduction nodules from Budleigh Salterton, Devon. Proceedings of the Ussher Society, Volume 8, Part 3, 214-218.; Article in the Russell Society newsletter (2000).
Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
Meneghinite
Formula: Pb13CuSb7S24
Mertieite-II
Formula: Pd8Sb2.5As0.5
Reference: Mineralogical Magazine 1982 46 : 371-377; C. J. Stanley, A. J. Criddle and D. Lloyd (1990) Precious and Base Metal Selenide Mineralization at Hope's Nose, Torquay, Devon. Mineralogical Magazine 54:485-493
Meta-autunite
Formula: Ca(UO2)2(PO4)2 · 6-8H2O
Habit: Tabular, highly metamict; encrusting
Colour: Pale, dull green to greenish yellow
Fluorescence: Rects strongly under Long Wave UV light with characteristic yellowish green.
Description: Dull green to yellow metamict crystal groups found on weathered granite surfaces, also crustiform coatings. Crystals to 0.5mm
Reference: Alysson Rowan Collection
Metatyuyamunite
Formula: Ca(UO2)2(VO4)2 · 3-5H2O
Metavivianite ?
Formula: Fe2+Fe3+2(PO4)2(OH)2 · 6H2O
'Mica Group'
Description: vanadian.
Reference: Kemp, A.J., Palmer, M.R., and Ragnarsdottir, K.V. (1994) The uranium-thorium and rare earth element geochemistry of reduction nodules from Budleigh Salterton, Devon. Proceedings of the Ussher Society, Volume 8, Part 3, 214-218.; Kemp, A.J., Powell, S.J., Palmer, M.R., and Ragnarsdottir, K.V. (1996) Computer aided analysis of x-ray images in mudstone concretions from Budleigh Salterton, Devon. Proceedings of the Ussher Society, Volume 9, 41-44.
Microcline
Formula: K(AlSi3O8)
Reference: UKJMM Vol.29 p.49-52
'Microlite Group'
Formula: A2-mTa2X6-wZ-n
Milarite ?
Formula: K2Ca4Al2Be4Si24O60 · H2O
Reference: Kingsbury, A.W.G. (1964) Mineralogical Magazine, 35, lvii.; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, 42(322), 169-177 (referring to Kingsbury).; von Knorring, O. and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48(348), 443-448 (referring to Kingsbury).; http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
Millerite
Formula: NiS
Mimetite
Formula: Pb5(AsO4)3Cl
Modderite
Formula: (Co,Fe)As
Reference: Kemp, A.J., Palmer, M.R., and Ragnarsdottir, K.V. (1994) The uranium-thorium and rare earth element geochemistry of reduction nodules from Budleigh Salterton, Devon. Proceedings of the Ussher Society, Volume 8, Part 3, 214-218.
Molybdenite
Formula: MoS2
Molybdomenite
Formula: PbSeO3
Reference: Technical Report TR-02-09 (March 2002) Alteration of uraniferous and native copper concretions in the Permian mudrocks of south Devon, United Kingdom - A E Milodowski et al
'Monazite'
Montebrasite
Formula: LiAl(PO4)(OH)
Reference: Kingsbury, A.W.G. (1964) in 'Present views on some aspects of the geology of Cornwall and Devon' (Roy. geol. Soc. Cornwall), p. 249; Moss, A.A., Fejer, E.E., and Embrey, P.G. (1969) On the X-Ray Identification of Amblygonite and Montebrasite. Mineralogical Magazine, 37(287), 414-422.; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, 42(322), 169-177.; von Knorring, O. and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48(348), 443-448.; Andy Tindle microprobe analysis; http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Montroseite
Formula: (V3+,Fe3+)O(OH)
Reference: Brian Craik-Smith collection
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 7 localities in this region.
Muscovite var: Gilbertite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Min Mag 21:116-205
Muscovite var: Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Nacrite
Formula: Al2(Si2O5)(OH)4
Natrojarosite
Formula: NaFe3(SO4)2(OH)6
Reference: Paul Render
Naumannite
Formula: Ag2Se
Reference: [Camm, 1995, 71 - "Gold in the Counties of Cornwall and Devon"]; C. J. Stanley, A. J. Criddle and D. Lloyd (1990) Precious and Base Metal Selenide Mineralization at Hope's Nose, Torquay, Devon. Mineralogical Magazine 54:485-493
Nickeline
Formula: NiAs
Nickelskutterudite
Formula: (Ni,Co,Fe)As3
Reference: [Sample in the collection of the Natural History Museum, London]
Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Description: Article in the Russell Society newsletter (2000). All have been confirmed by XRD from my own specimens. There are also articles on the Native Copper, etc from Dr. R. K.Harrison et al.
Reference: Brian Craik-Smith collection
Olivenite
Formula: Cu2(AsO4)(OH)
Reference: Greg, R. P., & Lettsom, W. G. (1858). Manual of the mineralogy of Great Britain & Ireland. J. Van Voorst.
Opal
Formula: SiO2 · nH2O
Localities: Reported from at least 6 localities in this region.
Opal var: Common Opal
Formula: SiO2 · nH2O
Habit: none: massive
Colour: white to off-white
Fluorescence: none
Description: Redeposited silica tubes formed in cracks in the Codden Hill Cherts which host a number of phosphate species. These thin-walled tubes appear to have formed in much the same way as speleothem 'straws', and various walls and ramifications appear across the rock surfaces. These same cracks also play host to the various phosphate minerals found at this location.
Reference: Alysson Rowan Collection
Orthoclase
Formula: K(AlSi3O8)
Localities: Reported from at least 9 localities in this region.
Palygorskite
Formula: (Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Paramelaconite
Formula: Cu1+2Cu2+2O3
Reference: Technical Report TR-02-09 (March 2002) Alteration of uraniferous and native copper concretions in the Permian mudrocks of south Devon, United Kingdom - A E Milodowski et al
Paramontroseite
Formula: V4+O2
Reference: Brian Craik-Smith collection
Pararammelsbergite
Formula: NiAs2
Reference: Technical Report TR-02-09 (March 2002) Alteration of uraniferous and native copper concretions in the Permian mudrocks of south Devon, United Kingdom - A E Milodowski et al
Parkerite
Formula: Ni3(Bi,Pb)2S2
Reference: UKJMM Vol.25 p.19; UKJMM Vol.29 p.49-52
Pascoite
Formula: Ca3(V10O28) · 17H2O
Reference: [R.Tayler, pers.comm.] J. F. Wyley (1961), Mineral. Mag. 33, xlvi; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, vol. 42, n° 322, 169-177 (referring to Wyley);
Penroseite
Formula: (Ni,Co,Cu)Se2
Reference: [Camm, 1995, 71 - "Gold in the Counties of Cornwall and Devon"]; C. J. Stanley, A. J. Criddle and D. Lloyd (1990) Precious and Base Metal Selenide Mineralization at Hope's Nose, Torquay, Devon. Mineralogical Magazine 54:485-493
Petalite
Formula: LiAl(Si4O10)
Reference: McLintock, W.F.P. (1923) On the occurrence of petalite and pneumatolytic apatite in the Meldon aplite, Okehampton, Devonshire. Mineralogical Magazine, 20(103), 140-150.; von Knorring, O. and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48(348), 443-448.; http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi;
Pharmacosiderite
Formula: KFe3+4(AsO4)3(OH)4 · 6-7H2O
Phurcalite
Formula: Ca2(UO2)3(PO4)2O2 · 7H2O
Reference: Braitwaite, R., Paar, W., and Chisholm, J., 1989, Phurcalite from Dartmoor, Southwest England,and its Identity with 'Nisaite' from Portugal, Mineralogical Magazine, 53:583-589. Min.Rec.: 20(5):395.
'Pilolite'
Formula: Mg4Al2Si10O27 · 15H2O
'Plumbogummite Group'
Description: The partly defined mineral forms tiny micro-crystals to 0.25mm with a pseudocubic habit, and a white to flesh pink colouration. Associated with cassiterite and tourmaline on quartz.
Reference: Steve Rust Collection
Pollucite
Formula: (Cs,Na)2(Al2Si4O12) · 2H2O
Reference: http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi; von Knorring, O. and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48(348), 443-448 (referring to Kingsbury).
Posnjakite
Formula: Cu4(SO4)(OH)6 · H2O
Reference: Technical Report TR-02-09 (March 2002) Alteration of uraniferous and native copper concretions in the Permian mudrocks of south Devon, United Kingdom - A E Milodowski et al
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Priceite ?
Formula: Ca2B5O7(OH)5 · H2O
Description: Fraudulent Kingsbury locality.
Reference: http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
Pseudomalachite
Formula: Cu5(PO4)2(OH)4
'Psilomelane'
Formula: Mn, O
Localities: Reported from at least 13 localities in this region.
Pyrargyrite
Formula: Ag3SbS3
Description: So far only found on one specimen as a group of three translucent red divergent micro-crystals measuring to 0.3mm tall In close association with Tetrahedrite and Chalcopyrite in a Siderite matrix. Other associated minerals are Sphalerite, Lollingite, Pyrite/Marcasite, and Quartz.
Reference: S. Rust Collection
Pyrite
Formula: FeS2
Localities: Reported from at least 73 localities in this region.
'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
Reference: http://www.mineralman.f9.co.uk/quarries/meldon.htm
Pyrochroite
Formula: Mn(OH)2
Habit: none
Description: Green earthy patches with occasional microscopic bright crystals.
Reference: Bernie Millington Collection
Pyrolusite
Formula: Mn4+O2
Localities: Reported from at least 17 localities in this region.
Pyromorphite
Formula: Pb5(PO4)3Cl
'Pyroxene Group'
Reference: http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
Pyrrhotite
Formula: Fe7S8
Localities: Reported from at least 7 localities in this region.
Quartz
Formula: SiO2
Localities: Reported from at least 124 localities in this region.
Quartz var: Agate
Reference: Bernie Millington Collection
Quartz var: Amethyst
Formula: SiO2
Localities: Reported from at least 6 localities in this region.
Quartz var: Beekite
Formula: SiO2
Reference: No reference listed
Quartz var: Capped Quartz
Reference: No reference listed
Quartz var: Chalcedony
Formula: SiO2
Localities: Reported from at least 15 localities in this region.
Quartz var: Haytorite
Formula: SiO2
Reference: No reference listed
Quartz var: Jasper
Quartz var: Rock Crystal
Formula: SiO2
Quartz var: Smoky Quartz
Formula: SiO2
Rammelsbergite
Formula: NiAs2
Rauenthalite
Formula: Ca3(AsO4)2 · 10H2O
Reference: Braithwaite, R.S.W., et al., Journal of the Russell Society 6(2), 100-101(1996):
Rauvite
Formula: Ca(UO2)2(V10O28) · 16H2O
Reference: Kemp, A.J., Palmer, M.R., and Ragnarsdottir, K.V. (1994) The uranium-thorium and rare earth element geochemistry of reduction nodules from Budleigh Salterton, Devon. Proceedings of the Ussher Society, Volume 8, Part 3, 214-218.
'Retinite'
Reference: Royal Cornwall Polytechnic Society (1870): 38. Annual Report, pp. 30-31
Rhodizite ?
Formula: (K,Cs)Al4Be4(B,Be)12O28
Description: Fraudulent Kingsbury locality.
Reference: http://www.mindat.org/mesg-7-92300.html; http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi; Embrey, P.G. (1973) Memorial of Arthur William Gerald Kingsbury. American Mineralogist, 58, 372-375.; von Knorring, O. and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48(348), 443-448 (referring to Kingsbury).
Rhodochrosite
Formula: MnCO3
Rhodonite
Formula: Mn2+SiO3
Localities: Reported from at least 7 localities in this region.
Rockbridgeite ?
Formula: Fe2+Fe3+4(PO4)3(OH)5
Roscoelite
Formula: K(V3+,Al)2(AlSi3O10)(OH)2
Description: Brian Craik-Smith: "Article in the Russell Society newsletter (2000). All have been confirmed by XRD from my own specimens. There are also articles on the native copper, etc. from Dr. R.K. Harrison et al."
Reference: Brian Craik-Smith collection; Harrison, R.K. (1975) Bulletin of the Geological Survey of Great Britain, 52, 15.; Kemp, A.J., Palmer, M.R., and Ragnarsdottir, K.V. (1994) The uranium-thorium and rare earth element geochemistry of reduction nodules from Budleigh Salterton, Devon. Proceedings of the Ussher Society, Volume 8, Part 3, 214-218.; Article in the Russell Society newsletter (2000).
Russellite
Formula: Bi2WO6
Description: Rarely found as pale to light yellow botryoidal crusts to 1cm, or as scattered balls to 0.75mm dia.
Reference: Mineralogical Record (2001) 32:249
Rutile
Formula: TiO2
Reference: UKJMM Vol.29 p.49-52
Sabugalite ?
Formula: HAl(UO2)4(PO4)4 · 16H2O
Reference: Mineralogical Magazine 1965 34 : 159-176.
Saléeite
Formula: Mg(UO2)2(PO4)2 · 10H2O
Habit: Tabular; crustiform
Colour: Lemon yellow
Fluorescence: Brilliant yellow reaction under Long Wave UV. Some yellow reaction under blue (LED) light.
Description: Minute crystals and crusts on surfaces within recent cracks in miarolitic granite, also within some miarolitic voids. Associated with uraninite and gummite.
Reference: Alysson Rowan Collection
Sanidine
Formula: K(AlSi3O8)
Reference: Pers Comm; from XRD and EPMA results - B. Smith
'Scapolite'
Reference: http://www.mineralman.f9.co.uk/quarries/meldon.htm
Scheelite
Formula: Ca(WO4)
Localities: Reported from at least 8 localities in this region.
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 9 localities in this region.
Schulenbergite ?
Formula: (Cu,Zn)7(SO4)2(OH)10 · 3H2O
Description: Minutely crystalline light blue crusts on corroded Sphalerite, covering ares to a few mm.
Reference: Steve Rust Collection
Scorodite
Formula: Fe3+AsO4 · 2H2O
Localities: Reported from at least 6 localities in this region.
Semseyite
Formula: Pb9Sb8S21
Reference: http://www.english-nature.org.uk/citation/citation_photo/1001318.pdf
Serpierite
Formula: Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Reference: No reference listed
Siderite
Formula: FeCO3
Localities: Reported from at least 59 localities in this region.
Sideronatrite
Formula: Na2Fe(SO4)2(OH) · 3H2O
Silver
Formula: Ag
Localities: Reported from at least 6 localities in this region.
Skutterudite
Formula: CoAs3
'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
Smithsonite
Formula: ZnCO3
Reference: Collection Richard De Nul
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: http://www.mineralman.f9.co.uk/quarries/meldon.htm; Mineralogical Magazine 1966 35 : 991-994.
Sphalerite
Formula: ZnS
Localities: Reported from at least 29 localities in this region.
Sphalerite var: Schalenblende
Reference: Grguric, B.A., and Nickel, E.H. (2006): UK Journal of Mines and Minerals 27, 39-40
Spodumene ?
Formula: LiAlSi2O6
Description: Erroneously reported by Kingsbury; see http://www.mindat.org/mesg-7-92300.html.
Reference: http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi; von Knorring, O. and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48(348), 443-448 (referring to Kingsbury).
Stannite
Formula: Cu2FeSnS4
Reference: UKJMM Vol.25 p.19; UKJMM Vol.29 p.49-52
'Stibiconite'
Formula: Sb3+Sb5+2O6(OH)
Reference: von Knorring, O., and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, vol. 48, n° 348, 443-448.
Stibnite ?
Formula: Sb2S3
Stilbite-Ca
Formula: NaCa4[Al9Si27O72] · nH2O
Reference: http://www.mineralman.f9.co.uk/quarries/meldon.htm
Strengite ?
Formula: FePO4 · 2H2O
Habit: botryoidal, encrusting; massive
Colour: pale purple
Description: Areas of purple phosphatic encrustations strongly resemble strengite.
Reference: Alysson Rowan Collection
Strontianite
Formula: SrCO3
Sulphur
Formula: S8