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North Devon Coast National Landscape, England, UKi
Regional Level Types
North Devon Coast National LandscapeNational Landscape
EnglandConstituent Country
UKCountry

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06656810017412025365560.jpg
View of the engine house, Knap Down Mine, Combe Martin silver mining area, in 1909.

Knap Down Mine, Combe Martin, North Devon, Devon, England, UK
Largest Settlements:
PlacePopulation
Combe Martin2,687 (2018)
Hartland910 (2018)
Woolacombe840 (2018)
Berrynarbor802 (2018)
Croyde693 (2018)
Georgeham467 (2018)
Mindat Locality ID:
468677
Long-form identifier:
mindat:1:2:468677:7
GUID (UUID V4):
0


No description has been added for this locality. Can you add one?

Select Mineral List Type

Standard Detailed Gallery Strunz 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

28 valid minerals.

Rock Types Recorded

Note: 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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Allophane
Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O
ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
ⓘ Aragonite
Formula: CaCO3
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Baryte
Formula: BaSO4
ⓘ Brochantite
Formula: Cu4(SO4)(OH)6
ⓘ Calcite
Formula: CaCO3
Localities: Reported from at least 6 localities in this region.
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 6 localities in this region.
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Erythrite ?
Formula: Co3(AsO4)2 · 8H2O
Habit: earthy, encrusting
Colour: pink
Description: Minute, pinkish crusts on black nodules after allowing to dry out thoroughly have been tentatively identified as erythrite as being comparable to the material seen on the similar nodules from Budleigh Salterton.
ⓘ Galena
Formula: PbS
ⓘ Galena var. Silver-bearing Galena
Formula: PbS with Ag
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Hematite
Formula: Fe2O3
ⓘ Jarosite
Formula: KFe3+3(SO4)2(OH)6
ⓘ Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
ⓘ Lepidocrocite
Formula: Fe3+O(OH)
ⓘ 'Limonite'
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Marcasite
Formula: FeS2
ⓘ Metatyuyamunite ?
Formula: Ca(UO2)2(VO4)2 · 3H2O
Habit: bladed, earthy
Colour: yellow
Description: Seen as minute, yellowish crusts of tiny crystals on the surface of black nodules. Tentatively identified through similarity with the mineral as seen on the Budleigh Salterton nodules.
ⓘ Metavivianite ?
Formula: Fe2+Fe3+2(PO4)2(OH)2 · 6H2O
Habit: botryoidal, encrusting
Colour: bottle green to greenish-black
Description: Seen as bottle-green to greenish-black encrustations on surfaces and within fractures. Tentatively identified as metavivianite through inference from understood local chemistry and similarity to other occurrances.
ⓘ Millerite
Formula: NiS
ⓘ Native Copper
Formula: Cu
ⓘ Natrojarosite
Formula: NaFe3(SO4)2(OH)6
ⓘ 'Psilomelane'
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrolusite
Formula: Mn4+O2
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 6 localities in this region.
ⓘ Siderite
Formula: FeCO3
Localities: Reported from at least 7 localities in this region.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘMillerite2.CC.20NiS
ⓘGalena2.CD.10PbS
ⓘvar. Silver-bearing Galena2.CD.10PbS with Ag
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘPyrolusite4.DB.05Mn4+O2
ⓘLepidocrocite4.FE.15Fe3+O(OH)
ⓘMetatyuyamunite ?4.HB.25Ca(UO2)2(VO4)2 · 3H2O
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘAragonite5.AB.15CaCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘBrochantite7.BB.25Cu4(SO4)(OH)6
ⓘJarosite7.BC.10KFe3+3(SO4)2(OH)6
ⓘNatrojarosite7.BC.10NaFe3(SO4)2(OH)6
ⓘLangite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘErythrite ?8.CE.40Co3(AsO4)2 · 8H2O
ⓘMetavivianite ?8.DC.25Fe2+Fe3+2(PO4)2(OH)2 · 6H2O
Group 9 - Silicates
ⓘAllophane9.ED.20(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Unclassified
ⓘ'Limonite'-
ⓘ'Psilomelane'-

List of minerals for each chemical element

HHydrogen
Hⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ BrochantiteCu4(SO4)(OH)6
Hⓘ ErythriteCo3(AsO4)2 · 8H2O
Hⓘ GoethiteFe3+O(OH)
Hⓘ JarositeKFe33+(SO4)2(OH)6
Hⓘ LangiteCu4(SO4)(OH)6 · 2H2O
Hⓘ LepidocrociteFe3+O(OH)
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
Hⓘ MetavivianiteFe2+Fe23+(PO4)2(OH)2 · 6H2O
Hⓘ NatrojarositeNaFe3(SO4)2(OH)6
CCarbon
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Cⓘ AragoniteCaCO3
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ SideriteFeCO3
OOxygen
Oⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ AragoniteCaCO3
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ BaryteBaSO4
Oⓘ BrochantiteCu4(SO4)(OH)6
Oⓘ CalciteCaCO3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ ErythriteCo3(AsO4)2 · 8H2O
Oⓘ GoethiteFe3+O(OH)
Oⓘ HematiteFe2O3
Oⓘ JarositeKFe33+(SO4)2(OH)6
Oⓘ LangiteCu4(SO4)(OH)6 · 2H2O
Oⓘ LepidocrociteFe3+O(OH)
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
Oⓘ MetavivianiteFe2+Fe23+(PO4)2(OH)2 · 6H2O
Oⓘ NatrojarositeNaFe3(SO4)2(OH)6
Oⓘ PyrolusiteMn4+O2
Oⓘ QuartzSiO2
Oⓘ SideriteFeCO3
NaSodium
Naⓘ NatrojarositeNaFe3(SO4)2(OH)6
MgMagnesium
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ DolomiteCaMg(CO3)2
AlAluminium
Alⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
SiSilicon
Siⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Siⓘ QuartzSiO2
PPhosphorus
Pⓘ MetavivianiteFe2+Fe23+(PO4)2(OH)2 · 6H2O
SSulfur
Sⓘ BaryteBaSO4
Sⓘ BrochantiteCu4(SO4)(OH)6
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ GalenaPbS
Sⓘ JarositeKFe33+(SO4)2(OH)6
Sⓘ LangiteCu4(SO4)(OH)6 · 2H2O
Sⓘ MarcasiteFeS2
Sⓘ MilleriteNiS
Sⓘ NatrojarositeNaFe3(SO4)2(OH)6
Sⓘ PyriteFeS2
Sⓘ Galena var. Silver-bearing GalenaPbS with Ag
KPotassium
Kⓘ JarositeKFe33+(SO4)2(OH)6
CaCalcium
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Caⓘ AragoniteCaCO3
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
Caⓘ MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
VVanadium
Vⓘ MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
MnManganese
Mnⓘ PyrolusiteMn4+O2
FeIron
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ GoethiteFe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ JarositeKFe33+(SO4)2(OH)6
Feⓘ LepidocrociteFe3+O(OH)
Feⓘ MarcasiteFeS2
Feⓘ MetavivianiteFe2+Fe23+(PO4)2(OH)2 · 6H2O
Feⓘ NatrojarositeNaFe3(SO4)2(OH)6
Feⓘ PyriteFeS2
Feⓘ SideriteFeCO3
CoCobalt
Coⓘ ErythriteCo3(AsO4)2 · 8H2O
NiNickel
Niⓘ MilleriteNiS
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BrochantiteCu4(SO4)(OH)6
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ Native CopperCu
Cuⓘ LangiteCu4(SO4)(OH)6 · 2H2O
Cuⓘ MalachiteCu2(CO3)(OH)2
AsArsenic
Asⓘ ErythriteCo3(AsO4)2 · 8H2O
AgSilver
Agⓘ Galena var. Silver-bearing GalenaPbS with Ag
BaBarium
Baⓘ BaryteBaSO4
PbLead
Pbⓘ GalenaPbS
Pbⓘ Galena var. Silver-bearing GalenaPbS with Ag
UUranium
Uⓘ MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O

Fossils

There are 1 fossil locality from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences113
Youngest Fossil Listed383 Ma (Late/Upper Devonian)
Oldest Fossil Listed388 Ma (Middle Devonian)
Stratigraphic Units
UnitNo. OccurrencesAge
Infracombe Slates - Combe Martin Slates - Jenny Start Limestone68387.7 - 382.7 Ma (Devonian)
Infracombe Slates - Combe Martin Slates - Combe Martin Beach Limestone18387.7 - 382.7 Ma (Devonian)
Infracombe Slates - Combe Martin Slates - David's Stone Limestone27387.7 - 382.7 Ma (Devonian)
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Stromatoporoidea
class
Animalia : Porifera : Stromatoporoidea387.7 - 382.7 Ma
Devonian
Clathrodictyon
genus
Animalia : Porifera : Clathrodictyidae : Clathrodictyon387.7 - 382.7 Ma
Devonian
Stromatopora
genus
Animalia : Porifera : Stromatoporoidea : Stromatoporida : Stromatoporidae : Stromatopora387.7 - 382.7 Ma
Devonian
Chaetetes
genus
Animalia : Porifera : Chaetetidae : Chaetetes387.7 - 382.7 Ma
Devonian
Alveolites
genus
Animalia : Cnidaria : Anthozoa : Alveolitidae : Alveolites387.7 - 382.7 Ma
Devonian
Aulocystis
genus
Animalia : Cnidaria : Anthozoa : Auloporida : Aulocystidae : Aulocystis387.7 - 382.7 Ma
Devonian
Aulopora
genus
Animalia : Cnidaria : Anthozoa : Auloporidae : Aulopora387.7 - 382.7 Ma
Devonian
Coenites
genus
Animalia : Cnidaria : Anthozoa : Coenitidae : Coenites387.7 - 382.7 Ma
Devonian
Pachyfavosites
genus
Animalia : Cnidaria : Anthozoa : Favositidae : Pachyfavosites387.7 - 382.7 Ma
Devonian
Thamnopora
genus
Animalia : Cnidaria : Anthozoa : Pachyporidae : Thamnopora387.7 - 382.7 Ma
Devonian
Acanthophyllum
genus
Animalia : Cnidaria : Anthozoa : Ptenophyllidae : Acanthophyllum387.7 - 382.7 Ma
Devonian
Barrandeophyllum
genus
Animalia : Cnidaria : Anthozoa : Laccophyllidae : Barrandeophyllum387.7 - 382.7 Ma
Devonian
Columnaria
genus
Animalia : Cnidaria : Anthozoa : Stauriida : Columnariidae : Columnaria387.7 - 382.7 Ma
Devonian
Disphyllum
genus
Animalia : Cnidaria : Anthozoa : Phillipsastraeidae : Disphyllum387.7 - 382.7 Ma
Devonian
Endophyllum
genus
Animalia : Cnidaria : Anthozoa : Endophyllidae : Endophyllum387.7 - 382.7 Ma
Devonian
Hexagonaria
genus
Animalia : Cnidaria : Anthozoa : Disphyllidae : Hexagonaria387.7 - 382.7 Ma
Devonian
Metriophyllum
genus
Animalia : Cnidaria : Anthozoa : Axophyllidae : Metriophyllum387.7 - 382.7 Ma
Devonian
Phillipsastrea
genus
Animalia : Cnidaria : Anthozoa : Phillipsastraeidae : Phillipsastrea387.7 - 382.7 Ma
Devonian
Plasmophyllum
genus
Animalia : Cnidaria : Anthozoa : Lykophyllidae : Plasmophyllum387.7 - 382.7 Ma
Devonian
Scruttonia
genus
Animalia : Cnidaria : Anthozoa : Phillipsastreidae : Scruttonia387.7 - 382.7 Ma
Devonian
Stringophyllum
genus
Animalia : Cnidaria : Anthozoa : Stringophyllidae : Stringophyllum387.7 - 382.7 Ma
Devonian
Syringaxon
genus
Animalia : Cnidaria : Anthozoa : Laccophyllidae : Syringaxon387.7 - 382.7 Ma
Devonian
Temnophyllum
genus
Animalia : Cnidaria : Anthozoa : Disphyllidae : Temnophyllum387.7 - 382.7 Ma
Devonian
Thamnophyllum
genus
Animalia : Cnidaria : Anthozoa : Phillipsastraeidae : Thamnophyllum387.7 - 382.7 Ma
Devonian
Xystriphyllum
genus
Animalia : Cnidaria : Anthozoa : Ptenophyllidae : Xystriphyllum387.7 - 382.7 Ma
Devonian
Orthoceras
genus
Animalia : Mollusca : Cephalopoda : Orthoceratidae : Orthoceras387.7 - 382.7 Ma
Devonian
Bryozoa
phylum
Animalia : Bryozoa387.7 - 382.7 Ma
Devonian
Schizophoria
genus
Animalia : Brachiopoda : Rhynchonellata : Orthida : Schizophoriidae : Schizophoria387.7 - 382.7 Ma
Devonian
Strophomenida
order
Animalia : Brachiopoda : Strophomenata : Strophomenida387.7 - 382.7 Ma
Devonian
Rhynchonellida
order
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida387.7 - 382.7 Ma
Devonian
Crinoidea
class
Animalia : Echinodermata : Crinoidea387.7 - 382.7 Ma
Devonian
Fenestellidae
family
Animalia : Bryozoa : Stenolaemata : Fenestrida : Fenestellidae387.7 - 382.7 Ma
Devonian
Blastozoa
subphylum
Animalia : Echinodermata : Blastozoa387.7 - 382.7 Ma
Devonian
Atrypacea
superfamily
Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypacea387.7 - 382.7 Ma
Devonian
Fossil LocalitiesClick to show 1 fossil locality

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/North_Devon_Coast
Wikidata ID:Q7055113

Localities in this Region

Other Regions, Features and Areas that Intersect

British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK

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