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Steel Mountain anorthosite massif, Newfoundland, Newfoundland and Labrador, Canadai
Regional Level Types
Steel Mountain anorthosite massifMassif
NewfoundlandRegion
Newfoundland and LabradorProvince
CanadaCountry

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Latitude & Longitude (WGS84):
48° 24' 9'' North , 58° 19' 54'' West
Latitude & Longitude (decimal):
48.40260,-58.33190
GeoHash:
G#: f8we2ekj8
GRN:
N33W28
Type:
Massif
KΓΆppen climate type:
Dfb : Warm-summer humid continental climate
Mindat Locality ID:
440126
Long-form identifier:
mindat:1:2:440126:4
GUID (UUID V4):
78e15ed4-0eac-461d-bbdb-e29be67c4fd2


The Steel Mountain complex is one of a series of Proterozoic inliers along the northwestern margin of the Appalachian Orogen in western Newfoundland and Cape Breton Island. The complex includes well-known magnetite deposits at the Bishop North and Bishop South localities. In 1997, Loadstone Limited developed two quarries in the deposit.
The Steel Mountain complex is some 50 km long and consists principally of anorthosite and gabbronorite. Diabase dykes with deformed margins cut the Steel Mountain anorthosite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


21 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Albite
Formula: Na(AlSi3O8)
β“˜ Albite var. Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
β“˜ Almandine
Formula: Fe2+3Al2(SiO4)3
β“˜ Antigorite
Formula: Mg3(Si2O5)(OH)4
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Calcite
Formula: CaCO3
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ 'Chlorite Group'
β“˜ Corundum
Formula: Al2O3
β“˜ Diopside
Formula: CaMgSi2O6
β“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
β“˜ Hercynite
Formula: Fe2+Al2O4
β“˜ 'Hypersthene'
Formula: (Mg,Fe)SiO3
β“˜ 'Iddingsite'
Formula: MgO · Fe2O3 · 3SiO2 · 4H2O
β“˜ Ilmenite
Formula: Fe2+TiO3
β“˜ 'K Feldspar'
β“˜ Magnesio-hornblende
Formula: ◻Ca2(Mg4Al)(Si7Al)O22(OH)2
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ 'Olivine Group'
Formula: M2SiO4
β“˜ Pargasite
Formula: NaCa2(Mg4Al)(Si6Al2)O22(OH)2
β“˜ Pentlandite
Formula: (NixFey)Ξ£9S8
β“˜ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
β“˜ Pyrite
Formula: FeS2
β“˜ Pyrrhotite
Formula: Fe1-xS
β“˜ 'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
β“˜ Spinel
Formula: MgAl2O4
β“˜ Talc
Formula: Mg3Si4O10(OH)2
β“˜ Titanite
Formula: CaTi(SiO4)O
β“˜ Tschermakite
Formula: ◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
β“˜ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Pentlandite2.BB.15(NixFey)Ξ£9S8
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Pyrrhotite2.CC.10Fe1-xS
β“˜Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
β“˜Hercynite4.BB.05Fe2+Al2O4
β“˜Spinel4.BB.05MgAl2O4
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Ilmenite4.CB.05Fe2+TiO3
β“˜Corundum4.CB.05Al2O3
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
Group 9 - Silicates
β“˜Almandine9.AD.25Fe2+3Al2(SiO4)3
β“˜Zircon9.AD.30Zr(SiO4)
β“˜Titanite9.AG.15CaTi(SiO4)O
β“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜Diopside9.DA.15CaMgSi2O6
β“˜Tschermakite9.DE.10β—»(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
β“˜Magnesio-hornblende9.DE.10β—»Ca2(Mg4Al)(Si7Al)O22(OH)2
β“˜Pargasite9.DE.15NaCa2(Mg4Al)(Si6Al2)O22(OH)2
β“˜Talc9.EC.05Mg3Si4O10(OH)2
β“˜Antigorite9.ED.15Mg3(Si2O5)(OH)4
β“˜Albite9.FA.35Na(AlSi3O8)
β“˜var. Andesine9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Unclassified
β“˜'Hypersthene'-(Mg,Fe)SiO3
β“˜'Chlorite Group'-
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Iddingsite'-MgO Β· Fe2O3 Β· 3SiO2 Β· 4H2O
β“˜'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
β“˜'K Feldspar'-
β“˜'Garnet Group'-X3Z2(SiO4)3
β“˜'Smectite Group'-A0.3D2-3[T4O10]Z2 Β· nH2O
β“˜'Olivine Group'-M2SiO4

List of minerals for each chemical element

HHydrogen
Hβ“˜ AntigoriteMg3(Si2O5)(OH)4
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hβ“˜ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Hβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Hβ“˜ TalcMg3Si4O10(OH)2
Hβ“˜ Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
Hβ“˜ IddingsiteMgO · Fe2O3 · 3SiO2 · 4H2O
Hβ“˜ Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
CCarbon
Cβ“˜ CalciteCaCO3
OOxygen
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Oβ“˜ AntigoriteMg3(Si2O5)(OH)4
Oβ“˜ AlmandineFe32+Al2(SiO4)3
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ CalciteCaCO3
Oβ“˜ CorundumAl2O3
Oβ“˜ DiopsideCaMgSi2O6
Oβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oβ“˜ HercyniteFe2+Al2O4
Oβ“˜ Hypersthene(Mg,Fe)SiO3
Oβ“˜ IlmeniteFe2+TiO3
Oβ“˜ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Oβ“˜ SpinelMgAl2O4
Oβ“˜ TalcMg3Si4O10(OH)2
Oβ“˜ TitaniteCaTi(SiO4)O
Oβ“˜ Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
Oβ“˜ ZirconZr(SiO4)
Oβ“˜ IddingsiteMgO · Fe2O3 · 3SiO2 · 4H2O
Oβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oβ“˜ Garnet GroupX3Z2(SiO4)3
Oβ“˜ Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
Oβ“˜ Olivine GroupM2SiO4
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naβ“˜ AlbiteNa(AlSi3O8)
Naβ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Naβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Naβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgβ“˜ AntigoriteMg3(Si2O5)(OH)4
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgβ“˜ DiopsideCaMgSi2O6
Mgβ“˜ Hypersthene(Mg,Fe)SiO3
Mgβ“˜ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Mgβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Mgβ“˜ SpinelMgAl2O4
Mgβ“˜ TalcMg3Si4O10(OH)2
Mgβ“˜ Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
Mgβ“˜ IddingsiteMgO · Fe2O3 · 3SiO2 · 4H2O
AlAluminium
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Alβ“˜ AlmandineFe32+Al2(SiO4)3
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ CorundumAl2O3
Alβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alβ“˜ HercyniteFe2+Al2O4
Alβ“˜ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Alβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Alβ“˜ SpinelMgAl2O4
Alβ“˜ Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
Alβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Siβ“˜ AntigoriteMg3(Si2O5)(OH)4
Siβ“˜ AlmandineFe32+Al2(SiO4)3
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ DiopsideCaMgSi2O6
Siβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siβ“˜ Hypersthene(Mg,Fe)SiO3
Siβ“˜ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Siβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Siβ“˜ TalcMg3Si4O10(OH)2
Siβ“˜ TitaniteCaTi(SiO4)O
Siβ“˜ Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
Siβ“˜ ZirconZr(SiO4)
Siβ“˜ IddingsiteMgO · Fe2O3 · 3SiO2 · 4H2O
Siβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siβ“˜ Garnet GroupX3Z2(SiO4)3
Siβ“˜ Olivine GroupM2SiO4
SSulfur
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ Pentlandite(NixFey)Ξ£9S8
Sβ“˜ PyriteFeS2
Sβ“˜ PyrrhotiteFe1-xS
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caβ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Caβ“˜ CalciteCaCO3
Caβ“˜ DiopsideCaMgSi2O6
Caβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caβ“˜ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Caβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Caβ“˜ TitaniteCaTi(SiO4)O
Caβ“˜ Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
Caβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiβ“˜ IlmeniteFe2+TiO3
Tiβ“˜ TitaniteCaTi(SiO4)O
FeIron
Feβ“˜ AlmandineFe32+Al2(SiO4)3
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feβ“˜ HercyniteFe2+Al2O4
Feβ“˜ Hypersthene(Mg,Fe)SiO3
Feβ“˜ IlmeniteFe2+TiO3
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ Pentlandite(NixFey)Ξ£9S8
Feβ“˜ PyriteFeS2
Feβ“˜ PyrrhotiteFe1-xS
Feβ“˜ IddingsiteMgO · Fe2O3 · 3SiO2 · 4H2O
NiNickel
Niβ“˜ Pentlandite(NixFey)Ξ£9S8
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
ZrZirconium
Zrβ“˜ ZirconZr(SiO4)

Other Regions, Features and Areas containing this locality

Canada
North America PlateTectonic Plate

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, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

[1]Pe-Piper, Georgia, Piper, David J. W., Dessureau, Gilles (2024) Mineralogy of the Steel Mountain Anorthosite Complex, Western Newfoundland Appalachians, Canada: Petrogenesis and Tectonic Affinity. Minerals, 14 (1) doi:10.3390/min14010081
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