Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Mary Tavy, West Devon, Devon, England, UKi
Regional Level Types
Mary TavyCivil Parish
West DevonBorough
DevonCounty
EnglandConstituent Country
UKCountry

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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

38 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
Anglesite
Formula: PbSO4
Arsenopyrite
Formula: FeAsS
Brochantite
Formula: Cu4(SO4)(OH)6
Calcite
Formula: CaCO3
Cassiterite
Formula: SnO2
Cerussite
Formula: PbCO3
Chalcopyrite
Formula: CuFeS2
Childrenite
Formula: Fe2+Al(PO4)(OH)2 · H2O
Description: Specimens of childrenite were collected from the dumps of this mine by Sir Arthur Russell in 1904. No childrenite was found however in a more recent re-examination of both the dumps and part of the old mine workings (Braithwaite and Cooper, 1982).
'Chlorite Group'
Devilline
Formula: CaCu4(SO4)2(OH)6 · 3H2O
Fluorapatite
Formula: Ca5(PO4)3F
Description: Seen as tiny colourless prismatic micro-crystals
Fluorapatite var. Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Description: Seen as tiny colourless prismatic micro-crystals
Galena
Formula: PbS
Goethite
Formula: Fe3+O(OH)
Description: A common post mining mineral
Gypsum
Formula: CaSO4 · 2H2O
Description: A common post mining mineral.
Hematite
Formula: Fe2O3
Jarosite
Formula: KFe3+3(SO4)2(OH)6
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
'Limonite'
Description: A common post mining mineral.
Linarite
Formula: PbCu(SO4)(OH)2
Löllingite
Formula: FeAs2
Description: Forms tin white metallic veinlets in Siderite, small cavities contain platy micro-crystals. (Needs confirmation S. Rust)
References:
Malachite
Formula: Cu2(CO3)(OH)2
Marcasite
Formula: FeS2
Description: May be confused with Lollingite
References:
Native Copper
Formula: Cu
Native Silver
Formula: Ag
Native Sulphur
Formula: S8
Description: Forms tiny rounded sub-millimeter crystals.
Nickeline
Formula: NiAs
'Psilomelane'
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.
References:
Pyrite
Formula: FeS2
Pyrolusite
Formula: Mn4+O2
Pyrrhotite
Formula: Fe1-xS
Description: Forms platy hexagonal crystals to 5mm.
Quartz
Formula: SiO2
Rhodonite
Formula: CaMn3Mn[Si5O15]
Scheelite
Formula: Ca(WO4)
Serpierite
Formula: Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Siderite
Formula: FeCO3
Description: Abundant the major vein filling cavities are commonly lined with well formed crystal to 5mm+
Sphalerite
Formula: ZnS
Description: Mostly occurs as red-brown clevage masses in Siderite with other sulphides, uncommon as crystals.
Tetrahedrite-(Fe)
Formula: Cu6(Cu4Fe2+2)Sb4S12S
References:
Steve Rust collection.Identification: SEM-EDS
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
Description: Found on a small number of specimens as metallic black masses to 2mm, and as very rare tetrahedral micro-crystals to 0.2mm, closely associated with Pyrargyrite and Chalcopyrite in a Siderite matrix. Other associated minerals are Sphalerite, Pyrite/Marcasite, Lollingite/Arsenopyrite, and Quartz.
References:
Vivianite
Formula: Fe2+Fe2+2(PO4)2 · 8H2O
Description: Forms partly developed crystals, and as a thin pale blue crust resulting from the alteration of Pyrrhotite/Pyrite.
Wroewolfeite
Formula: Cu4(SO4)(OH)6 · 2H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Copper1.AA.05Cu
Native Silver1.AA.05Ag
Native Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Nickeline2.CC.05NiAs
Pyrrhotite2.CC.10Fe1-xS
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Marcasite2.EB.10aFeS2
Löllingite2.EB.15aFeAs2
Arsenopyrite2.EB.20FeAsS
Pyrargyrite2.GA.05Ag3SbS3
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Tetrahedrite-(Fe)2.GB.05Cu6(Cu4Fe2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
Goethite4.00.Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Cassiterite4.DB.05SnO2
Pyrolusite4.DB.05Mn4+O2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Siderite5.AB.05FeCO3
Cerussite5.AB.15PbCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Brochantite7.BB.25Cu4(SO4)(OH)6
Jarosite7.BC.10KFe3+3(SO4)2(OH)6
Linarite7.BC.65PbCu(SO4)(OH)2
Gypsum7.CD.40CaSO4 · 2H2O
Langite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Wroewolfeite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Devilline7.DD.30CaCu4(SO4)2(OH)6 · 3H2O
Serpierite7.DD.30Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Scheelite7.GA.05Ca(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite
var. Carbonate-rich Fluorapatite
8.BN.05Ca5(PO4,CO3)3(F,O)
8.BN.05Ca5(PO4)3F
Vivianite8.CE.40Fe2+Fe2+2(PO4)2 · 8H2O
Childrenite8.DD.20Fe2+Al(PO4)(OH)2 · H2O
Group 9 - Silicates
Rhodonite9.DK.05CaMn3Mn[Si5O15]
Unclassified
'Chlorite Group'-
'Limonite'-
'Psilomelane'-

List of minerals for each chemical element

HHydrogen
H BrochantiteCu4(SO4)(OH)6
H ChildreniteFe2+Al(PO4)(OH)2 · H2O
H DevillineCaCu4(SO4)2(OH)6 · 3H2O
H GoethiteFe3+O(OH)
H GypsumCaSO4 · 2H2O
H JarositeKFe33+(SO4)2(OH)6
H LangiteCu4(SO4)(OH)6 · 2H2O
H LinaritePbCu(SO4)(OH)2
H MalachiteCu2(CO3)(OH)2
H SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
H VivianiteFe2+Fe22+(PO4)2 · 8H2O
H WroewolfeiteCu4(SO4)(OH)6 · 2H2O
CCarbon
C CalciteCaCO3
C Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
C CerussitePbCO3
C MalachiteCu2(CO3)(OH)2
C SideriteFeCO3
OOxygen
O AnglesitePbSO4
O BrochantiteCu4(SO4)(OH)6
O CalciteCaCO3
O Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
O CassiteriteSnO2
O CerussitePbCO3
O ChildreniteFe2+Al(PO4)(OH)2 · H2O
O DevillineCaCu4(SO4)2(OH)6 · 3H2O
O FluorapatiteCa5(PO4)3F
O GoethiteFe3+O(OH)
O GypsumCaSO4 · 2H2O
O HematiteFe2O3
O JarositeKFe33+(SO4)2(OH)6
O LangiteCu4(SO4)(OH)6 · 2H2O
O LinaritePbCu(SO4)(OH)2
O MalachiteCu2(CO3)(OH)2
O PyrolusiteMn4+O2
O QuartzSiO2
O RhodoniteCaMn3Mn[Si5O15]
O ScheeliteCa(WO4)
O SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
O SideriteFeCO3
O VivianiteFe2+Fe22+(PO4)2 · 8H2O
O WroewolfeiteCu4(SO4)(OH)6 · 2H2O
FFluorine
F Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
F FluorapatiteCa5(PO4)3F
AlAluminium
Al ChildreniteFe2+Al(PO4)(OH)2 · H2O
SiSilicon
Si QuartzSiO2
Si RhodoniteCaMn3Mn[Si5O15]
PPhosphorus
P Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
P ChildreniteFe2+Al(PO4)(OH)2 · H2O
P FluorapatiteCa5(PO4)3F
P VivianiteFe2+Fe22+(PO4)2 · 8H2O
SSulfur
S AcanthiteAg2S
S AnglesitePbSO4
S ArsenopyriteFeAsS
S BrochantiteCu4(SO4)(OH)6
S ChalcopyriteCuFeS2
S DevillineCaCu4(SO4)2(OH)6 · 3H2O
S GalenaPbS
S GypsumCaSO4 · 2H2O
S JarositeKFe33+(SO4)2(OH)6
S LangiteCu4(SO4)(OH)6 · 2H2O
S LinaritePbCu(SO4)(OH)2
S MarcasiteFeS2
S PyrargyriteAg3SbS3
S PyriteFeS2
S PyrrhotiteFe1-xS
S SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
S SphaleriteZnS
S Native SulphurS8
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
S WroewolfeiteCu4(SO4)(OH)6 · 2H2O
S Tetrahedrite-(Fe)Cu6(Cu4Fe22+)Sb4S12S
KPotassium
K JarositeKFe33+(SO4)2(OH)6
CaCalcium
Ca CalciteCaCO3
Ca Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
Ca DevillineCaCu4(SO4)2(OH)6 · 3H2O
Ca FluorapatiteCa5(PO4)3F
Ca GypsumCaSO4 · 2H2O
Ca RhodoniteCaMn3Mn[Si5O15]
Ca ScheeliteCa(WO4)
Ca SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
MnManganese
Mn PyrolusiteMn4+O2
Mn RhodoniteCaMn3Mn[Si5O15]
FeIron
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe ChildreniteFe2+Al(PO4)(OH)2 · H2O
Fe GoethiteFe3+O(OH)
Fe HematiteFe2O3
Fe JarositeKFe33+(SO4)2(OH)6
Fe LöllingiteFeAs2
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe PyrrhotiteFe1-xS
Fe SideriteFeCO3
Fe VivianiteFe2+Fe22+(PO4)2 · 8H2O
Fe Tetrahedrite-(Fe)Cu6(Cu4Fe22+)Sb4S12S
NiNickel
Ni NickelineNiAs
CuCopper
Cu BrochantiteCu4(SO4)(OH)6
Cu ChalcopyriteCuFeS2
Cu Native CopperCu
Cu DevillineCaCu4(SO4)2(OH)6 · 3H2O
Cu LangiteCu4(SO4)(OH)6 · 2H2O
Cu LinaritePbCu(SO4)(OH)2
Cu MalachiteCu2(CO3)(OH)2
Cu SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Cu WroewolfeiteCu4(SO4)(OH)6 · 2H2O
Cu Tetrahedrite-(Fe)Cu6(Cu4Fe22+)Sb4S12S
ZnZinc
Zn SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
As LöllingiteFeAs2
As NickelineNiAs
AgSilver
Ag AcanthiteAg2S
Ag PyrargyriteAg3SbS3
Ag Native SilverAg
SnTin
Sn CassiteriteSnO2
SbAntimony
Sb PyrargyriteAg3SbS3
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sb Tetrahedrite-(Fe)Cu6(Cu4Fe22+)Sb4S12S
WTungsten
W ScheeliteCa(WO4)
PbLead
Pb AnglesitePbSO4
Pb CerussitePbCO3
Pb GalenaPbS
Pb LinaritePbCu(SO4)(OH)2

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Other Databases

GeoNames ID:7300389

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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