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Galmoy Mine, Johnstown, Kilkenny County, Leinster, Irelandi
Regional Level Types
Galmoy MineMine (Inactive)
JohnstownTown
Kilkenny CountyCounty
LeinsterProvince
IrelandCountry

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Latitude & Longitude (WGS84):
52° 48' 19'' North , 7° 35' 49'' West
Latitude & Longitude (decimal):
52.80528,-7.59722
GeoHash:
G#:gc6s7hgv5
GRN:
N36W04
Type:
Mine (Inactive) - last checked 2018
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Rathdowney1,208(2013)5.6km
Johnstown472(2013)6.9km
Errill196(2013)8.4km
Templetuohy323(2013)8.5km
Urlingford973(2013)9.5km
Mindat Locality ID:
18697
Long-form identifier:
mindat:1:2:18697:8
GUID (UUID V4):
0


A lead-zinc underground mine.
The orebody, in Lower Carboniferous rocks, was discovered in the 1960's when significant soil geochemical anomalies were found. More surveys were conducted in the 1980's and finally, mineralization was found.
The mine began production in 1997 and various satellite orebodies have been found.
The ore is breccia-hosted and forms generally stratabound lenses of predominantly massive sulphides consisting of sphalerite, Ag-bearing galena, and pyrite/marcasite.
'Room and pillar' extraction methods are used and unfortunately backfilling as well, making collecting difficult.
Requests to the geology department for specimens, or even access to the mine, have been consistently ignored or refused on the grounds that mineral "specimens are the property of the company and cannot be allowed off site", a policy strongly defended by the chief geologist. They seem to have had no interest in preserving their natural mineralogical heritage for future generations.
The mine closed in summer 2009 but reopened shortly after to permit removal of some remaining high-grade ore for processing at the nearby Lisheen mine. Of the three modern Irish zinc mines (Galmoy, Lisheen, and Tara), Galmoy was the best for vugs and crystallised material, but for the aforementioned reasons, almost nothing has been saved. The few pieces obtained from employees indicate that this mine may have been the greatest Irish mineralogical treasure trove since Silvermines.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘAnglesite
Formula:PbSO4
ⓘAnhydrite
Formula:CaSO4
ⓘBaryte
Formula:BaSO4
ⓘBornite
Formula:Cu5FeS4
ⓘBoyleite
Formula:ZnSO4 · 4H2O
ⓘCalcite
Formula:CaCO3
ⓘCerussite
Formula:PbCO3
ⓘChalcocite
Formula:Cu2S
ⓘChalcopyrite
Formula:CuFeS2
ⓘCopiapite
Formula:Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
ⓘDolomite
Formula:CaMg(CO3)2
ⓘ'Freibergite Subgroup'
Formula:(Ag6,[Ag6]4+)(Cu4C2+2)Sb4S12S0-1
ⓘGalena
Formula:PbS
ⓘGoethite
Formula:Fe3+O(OH)
ⓘGypsum
Formula:CaSO4 · 2H2O
ⓘHematite
Formula:Fe2O3
ⓘHemimorphite
Formula:Zn4Si2O7(OH)2 · H2O
ⓘHydrozincite
Formula:Zn5(CO3)2(OH)6
ⓘJalpaite
Formula:Ag3CuS2
ⓘJarosite
Formula:KFe3+3(SO4)2(OH)6
ⓘLepidocrocite
Formula:Fe3+O(OH)
ⓘMarcasite
Formula:FeS2
ⓘMelanterite
Formula:Fe2+(H2O)6SO4 · H2O
ⓘMuscovite
Formula:KAl2(AlSi3O10)(OH)2
ⓘMuscovite var. Illite
Formula:K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘNative Silver
Formula:Ag
ⓘNontronite
Formula:Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
ⓘProustite
Formula:Ag3AsS3
ⓘPyrite
Formula:FeS2
ⓘQuartz
Formula:SiO2
ⓘRozenite
Formula:FeSO4 · 4H2O
ⓘSmithsonite
Formula:ZnCO3
ⓘSphalerite
Formula:ZnS
ⓘStrontianite
Formula:SrCO3
Description: Only one specimen known.
ⓘ'Tennantite Subgroup'
Formula:Cu6(Cu4C2+2)As4S12S
ⓘ'Tennantite-Tetrahedrite Series'
ⓘ'Tetrahedrite Subgroup'
Formula:Cu6(Cu4C2+2)Sb4S12S
ⓘWillemite ?
Formula:Zn2SiO4

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘJalpaite2.BA.45Ag3CuS2
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘProustite2.GA.05Ag3AsS3
ⓘ'Freibergite Subgroup'2.GB.05(Ag6,[Ag6]4+)(Cu4C2+2)Sb4S12S0-1
ⓘ'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘLepidocrocite4.FE.15Fe3+O(OH)
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSmithsonite5.AB.05ZnCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘCerussite5.AB.15PbCO3
ⓘStrontianite5.AB.15SrCO3
ⓘHydrozincite5.BA.15Zn5(CO3)2(OH)6
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘAnglesite7.AD.35PbSO4
ⓘBaryte7.AD.35BaSO4
ⓘJarosite7.BC.10KFe3+3(SO4)2(OH)6
ⓘBoyleite7.CB.15ZnSO4 · 4H2O
ⓘRozenite7.CB.15FeSO4 · 4H2O
ⓘMelanterite7.CB.35Fe2+(H2O)6SO4 · H2O
ⓘGypsum7.CD.40CaSO4 · 2H2O
ⓘCopiapite7.DB.35Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
Group 9 - Silicates
ⓘWillemite ?9.AA.05Zn2SiO4
ⓘHemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
ⓘMuscovite
var. Illite		9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘNontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Unclassified
ⓘ'Tennantite-Tetrahedrite Series'-

List of minerals for each chemical element

HHydrogen
HⓘBoyleiteZnSO4 · 4H2O
HⓘCopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
HⓘGoethiteFe3+O(OH)
HⓘGypsumCaSO4 · 2H2O
HⓘHemimorphiteZn4Si2O7(OH)2 · H2O
HⓘHydrozinciteZn5(CO3)2(OH)6
HⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
HⓘJarositeKFe33+(SO4)2(OH)6
HⓘLepidocrociteFe3+O(OH)
HⓘMelanteriteFe2+(H2O)6SO4 · H2O
HⓘMuscoviteKAl2(AlSi3O10)(OH)2
HⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
HⓘRozeniteFeSO4 · 4H2O
CCarbon
CⓘCalciteCaCO3
CⓘCerussitePbCO3
CⓘDolomiteCaMg(CO3)2
CⓘHydrozinciteZn5(CO3)2(OH)6
CⓘSmithsoniteZnCO3
CⓘStrontianiteSrCO3
OOxygen
OⓘAnglesitePbSO4
OⓘAnhydriteCaSO4
OⓘBaryteBaSO4
OⓘBoyleiteZnSO4 · 4H2O
OⓘCalciteCaCO3
OⓘCerussitePbCO3
OⓘCopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
OⓘDolomiteCaMg(CO3)2
OⓘGoethiteFe3+O(OH)
OⓘGypsumCaSO4 · 2H2O
OⓘHematiteFe2O3
OⓘHemimorphiteZn4Si2O7(OH)2 · H2O
OⓘHydrozinciteZn5(CO3)2(OH)6
OⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
OⓘJarositeKFe33+(SO4)2(OH)6
OⓘLepidocrociteFe3+O(OH)
OⓘMelanteriteFe2+(H2O)6SO4 · H2O
OⓘMuscoviteKAl2(AlSi3O10)(OH)2
OⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
OⓘQuartzSiO2
OⓘRozeniteFeSO4 · 4H2O
OⓘSmithsoniteZnCO3
OⓘStrontianiteSrCO3
OⓘWillemiteZn2SiO4
NaSodium
NaⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
MgMagnesium
MgⓘDolomiteCaMg(CO3)2
AlAluminium
AlⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
AlⓘMuscoviteKAl2(AlSi3O10)(OH)2
AlⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
SiSilicon
SiⓘHemimorphiteZn4Si2O7(OH)2 · H2O
SiⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
SiⓘMuscoviteKAl2(AlSi3O10)(OH)2
SiⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
SiⓘQuartzSiO2
SiⓘWillemiteZn2SiO4
SSulfur
SⓘAnglesitePbSO4
SⓘAnhydriteCaSO4
SⓘBaryteBaSO4
SⓘBorniteCu5FeS4
SⓘBoyleiteZnSO4 · 4H2O
SⓘChalcopyriteCuFeS2
SⓘChalcociteCu2S
SⓘCopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
SⓘTennantite-Tetrahedrite Series
SⓘFreibergite Subgroup(Ag6,[Ag6]4+)(Cu4C22+)Sb4S12S0-1
SⓘGalenaPbS
SⓘGypsumCaSO4 · 2H2O
SⓘJalpaiteAg3CuS2
SⓘJarositeKFe33+(SO4)2(OH)6
SⓘMarcasiteFeS2
SⓘMelanteriteFe2+(H2O)6SO4 · H2O
SⓘProustiteAg3AsS3
SⓘPyriteFeS2
SⓘRozeniteFeSO4 · 4H2O
SⓘSphaleriteZnS
SⓘTennantite SubgroupCu6(Cu4C22+)As4S12S
SⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
KⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
KⓘJarositeKFe33+(SO4)2(OH)6
KⓘMuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
CaⓘAnhydriteCaSO4
CaⓘCalciteCaCO3
CaⓘDolomiteCaMg(CO3)2
CaⓘGypsumCaSO4 · 2H2O
FeIron
FeⓘBorniteCu5FeS4
FeⓘChalcopyriteCuFeS2
FeⓘCopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
FeⓘGoethiteFe3+O(OH)
FeⓘHematiteFe2O3
FeⓘJarositeKFe33+(SO4)2(OH)6
FeⓘLepidocrociteFe3+O(OH)
FeⓘMarcasiteFeS2
FeⓘMelanteriteFe2+(H2O)6SO4 · H2O
FeⓘNontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
FeⓘPyriteFeS2
FeⓘRozeniteFeSO4 · 4H2O
CuCopper
CuⓘBorniteCu5FeS4
CuⓘChalcopyriteCuFeS2
CuⓘChalcociteCu2S
CuⓘTennantite-Tetrahedrite Series
CuⓘFreibergite Subgroup(Ag6,[Ag6]4+)(Cu4C22+)Sb4S12S0-1
CuⓘJalpaiteAg3CuS2
CuⓘTennantite SubgroupCu6(Cu4C22+)As4S12S
CuⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
ZnⓘBoyleiteZnSO4 · 4H2O
ZnⓘHemimorphiteZn4Si2O7(OH)2 · H2O
ZnⓘHydrozinciteZn5(CO3)2(OH)6
ZnⓘSmithsoniteZnCO3
ZnⓘSphaleriteZnS
ZnⓘWillemiteZn2SiO4
AsArsenic
AsⓘTennantite-Tetrahedrite Series
AsⓘProustiteAg3AsS3
AsⓘTennantite SubgroupCu6(Cu4C22+)As4S12S
SrStrontium
SrⓘStrontianiteSrCO3
AgSilver
AgⓘFreibergite Subgroup(Ag6,[Ag6]4+)(Cu4C22+)Sb4S12S0-1
AgⓘJalpaiteAg3CuS2
AgⓘProustiteAg3AsS3
AgⓘNative SilverAg
SbAntimony
SbⓘTennantite-Tetrahedrite Series
SbⓘFreibergite Subgroup(Ag6,[Ag6]4+)(Cu4C22+)Sb4S12S0-1
SbⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
BaBarium
BaⓘBaryteBaSO4
PbLead
PbⓘAnglesitePbSO4
PbⓘCerussitePbCO3
PbⓘGalenaPbS

Other Regions, Features and Areas containing this locality

British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

www.arcon.ie (n.d.)http://www.arcon.ie/s/GalmoyMine.asp
www.mining-technology.com (n.d.)http://www.mining-technology.com/projects/galmoy/
Sullivan, J.R. et al. (2005) A Technical Review of the Galmoy Mine and Prospecting Licences Held by Arcon in the Irish Midlands-republic of Ireland for Lundin Mining Corporation.
www.lundinmining.com (2006)http://www.lundinmining.com/galmoy/index.php
Balassone, Giuseppina; Rossi, Manuela; Boni, Maria; Stanley, Gerry; McDermott, Paul (2008) Mineralogical and geochemical characterization of nonsulfide Zn–Pb mineralization at Silvermines and Galmoy (Irish Midlands).Ore Geology Reviews, 33 (2).doi:10.1016/j.oregeorev.2006.06.001
Barrie, C.D., Boyce, A.J., Boyle, A.P., Williams, P.J., Blake, K., Wilkinson, J.J., Lowther, M., McDermott, P., and Prior, D.J. (2009) On the growth of colloform textures: A case study of sphalerite from the Galmoy ore body, Ireland. Journal of the Geological Society 166(3), 563-582.
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