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Northeastern rim, Markov Deep, Sierra Leone fracture zone, Mid-Atlantic Ridge complex, Atlantic Oceani
Regional Level Types
Northeastern rim- not defined -
Markov Deep- not defined -
Sierra Leone fracture zoneZone
Mid-Atlantic Ridge complexMid-Ocean Ridge
Atlantic OceanOcean

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Latitude & Longitude (WGS84):
5° 53' North , 33° 11' West
Latitude & Longitude (decimal):
Mindat Locality ID:
194864
Long-form identifier:
mindat:1:2:194864:9
GUID (UUID V4):
85267328-4889-4874-8a97-c39809af0e22


The walls of the basin are composed of serpentinized peridotites and gabbroids, locally transformed into mylonites and cataclasites, and affected by metasomatic alteration. Intensely altered basalts and dolerites are exposed at the valley bottom, on its flanks, and in the upper part of the slopes; fresh basalts with glassy crusts occur at the valley bottom. The main ore-bearing zone is situated at the foot of the eastern wall, where it is hosted in cataclastic hornblende gabbro and gabbronorite of the Fe–Ti-oxide series. Ores in metasomatically altered rocks consist of quartz–sulfide and prehnite–sulfide veinlets, disseminated sulfide, and veined copper sulfide ore. At the foot of the eastern wall, immediately below the ore-bearing zone, loose sediments contain grains of native Cu, Pb, Zn, and Sn and intermetallic compounds (isoferroplatinum, tetraferroplatinum, and brass) that were apparently derived from the ore.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


44 valid minerals.

Detailed Mineral List:

β“˜ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜ Albite
Formula: Na(AlSi3O8)
β“˜ 'Ξ±-Brass'
Formula: Cu3Zn
β“˜ Anorthite
Formula: Ca(Al2Si2O8)
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ Atacamite
Formula: Cu2(OH)3Cl
β“˜ Baddeleyite
Formula: ZrO2
β“˜ Baryte
Formula: BaSO4
β“˜ Bornite
Formula: Cu5FeS4
β“˜ Chalcocite
Formula: Cu2S
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ Chamosite
Formula: (Fe2+)5Al(Si,Al)4O10(OH,O)8
β“˜ Chamosite var. Daphnite
Formula: (Fe,Mg)5Al(Si,Al)4O10(OH)8
β“˜ Chromite
Formula: Fe2+Cr3+2O4
β“˜ Chrysotile
Formula: Mg3(Si2O5)(OH)4
β“˜ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
β“˜ Clinozoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
β“˜ Copper
Formula: Cu
β“˜ Digenite
Formula: Cu9S5
β“˜ Diopside
Formula: CaMgSi2O6
β“˜ Enstatite
Formula: Mg2Si2O6
β“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜ 'Fayalite-Forsterite Series'
β“˜ Hematite
Formula: Fe2O3
β“˜ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜ Ilmenite
Formula: Fe2+TiO3
β“˜ Isoferroplatinum
Formula: Pt3Fe
β“˜ Kaersutite
Formula: NaCa2(Mg3AlTi4+)(Si6Al2)O22O2
β“˜ Lead
Formula: Pb
β“˜ 'Limonite'
β“˜ Lizardite
Formula: Mg3(Si2O5)(OH)4
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ Millerite ?
Formula: NiS
β“˜ Opal
Formula: SiO2 · nH2O
β“˜ Pargasite
Formula: NaCa2(Mg4Al)(Si6Al2)O22(OH)2
β“˜ Pentlandite
Formula: (NixFey)Ξ£9S8
β“˜ Prehnite
Formula: Ca2Al2Si3O10(OH)2
β“˜ Pyrite
Formula: FeS2
β“˜ Pyrrhotite
Formula: Fe1-xS
β“˜ Quartz
Formula: SiO2
β“˜ Rutile
Formula: TiO2
β“˜ 'Saussurite'
β“˜ Siderite
Formula: FeCO3
β“˜ Sphalerite
Formula: ZnS
β“˜ Talc
Formula: Mg3Si4O10(OH)2
β“˜ Tetraferroplatinum
Formula: PtFe
β“˜ Tin
Formula: Sn
β“˜ Titanite
Formula: CaTi(SiO4)O
β“˜ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
β“˜ Zinc
Formula: Zn
β“˜ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Copper1.AA.05Cu
β“˜Lead1.AA.05Pb
β“˜Zinc1.AB.05Zn
β“˜'Ξ±-Brass'1.AB.10aCu3Zn
β“˜Tin1.AC.10Sn
β“˜Isoferroplatinum1.AG.35Pt3Fe
β“˜Tetraferroplatinum1.AG.40PtFe
Group 2 - Sulphides and Sulfosalts
β“˜Chalcocite2.BA.05Cu2S
β“˜Digenite2.BA.10Cu9S5
β“˜Bornite2.BA.15Cu5FeS4
β“˜Pentlandite2.BB.15(NixFey)Ξ£9S8
β“˜Sphalerite2.CB.05aZnS
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Pyrrhotite2.CC.10Fe1-xS
β“˜Millerite ?2.CC.20NiS
β“˜Pyrite2.EB.05aFeS2
Group 3 - Halides
β“˜Atacamite3.DA.10aCu2(OH)3Cl
Group 4 - Oxides and Hydroxides
β“˜Chromite4.BB.05Fe2+Cr3+2O4
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Hematite4.CB.05Fe2O3
β“˜Ilmenite4.CB.05Fe2+TiO3
β“˜Quartz4.DA.05SiO2
β“˜Opal4.DA.10SiO2 Β· nH2O
β“˜Rutile4.DB.05TiO2
β“˜Baddeleyite4.DE.35ZrO2
Group 5 - Nitrates and Carbonates
β“˜Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Baryte7.AD.35BaSO4
Group 9 - Silicates
β“˜Chrysotile9..Mg3(Si2O5)(OH)4
β“˜Zircon9.AD.30Zr(SiO4)
β“˜Titanite9.AG.15CaTi(SiO4)O
β“˜Clinozoisite9.BG.05a(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
β“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜Enstatite9.DA.05Mg2Si2O6
β“˜Diopside9.DA.15CaMgSi2O6
β“˜Tremolite9.DE.10β—»Ca2Mg5(Si8O22)(OH)2
β“˜Actinolite9.DE.10β—»Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜Kaersutite9.DE.15NaCa2(Mg3AlTi4+)(Si6Al2)O22O2
β“˜Pargasite9.DE.15NaCa2(Mg4Al)(Si6Al2)O22(OH)2
β“˜Prehnite9.DP.20Ca2Al2Si3O10(OH)2
β“˜Talc9.EC.05Mg3Si4O10(OH)2
β“˜Chamosite
var. Daphnite
9.EC.55(Fe,Mg)5Al(Si,Al)4O10(OH)8
β“˜Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
β“˜Chamosite9.EC.55(Fe2+)5Al(Si,Al)4O10(OH,O)8
β“˜Lizardite9.ED.15Mg3(Si2O5)(OH)4
β“˜Albite9.FA.35Na(AlSi3O8)
β“˜Anorthite9.FA.35Ca(Al2Si2O8)
Unclassified
β“˜'Saussurite'-
β“˜'Limonite'-
β“˜'Hornblende Root Name Group'-β—»Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜'Fayalite-Forsterite Series'-
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hβ“˜ AtacamiteCu2(OH)3Cl
Hβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Hβ“˜ ChrysotileMg3(Si2O5)(OH)4
Hβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Hβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Hβ“˜ Chamosite var. Daphnite(Fe,Mg)5Al(Si,Al)4O10(OH)8
Hβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hβ“˜ LizarditeMg3(Si2O5)(OH)4
Hβ“˜ OpalSiO2 · nH2O
Hβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Hβ“˜ PrehniteCa2Al2Si3O10(OH)2
Hβ“˜ TalcMg3Si4O10(OH)2
Hβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cβ“˜ SideriteFeCO3
OOxygen
Oβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ AnorthiteCa(Al2Si2O8)
Oβ“˜ AtacamiteCu2(OH)3Cl
Oβ“˜ BaddeleyiteZrO2
Oβ“˜ BaryteBaSO4
Oβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Oβ“˜ ChrysotileMg3(Si2O5)(OH)4
Oβ“˜ ChromiteFe2+Cr23+O4
Oβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Oβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Oβ“˜ Chamosite var. Daphnite(Fe,Mg)5Al(Si,Al)4O10(OH)8
Oβ“˜ DiopsideCaMgSi2O6
Oβ“˜ EnstatiteMg2Si2O6
Oβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oβ“˜ HematiteFe2O3
Oβ“˜ IlmeniteFe2+TiO3
Oβ“˜ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Oβ“˜ LizarditeMg3(Si2O5)(OH)4
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ OpalSiO2 · nH2O
Oβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Oβ“˜ PrehniteCa2Al2Si3O10(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ RutileTiO2
Oβ“˜ SideriteFeCO3
Oβ“˜ TalcMg3Si4O10(OH)2
Oβ“˜ TitaniteCaTi(SiO4)O
Oβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oβ“˜ ZirconZr(SiO4)
Oβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naβ“˜ AlbiteNa(AlSi3O8)
Naβ“˜ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Naβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
MgMagnesium
Mgβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgβ“˜ ChrysotileMg3(Si2O5)(OH)4
Mgβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgβ“˜ Chamosite var. Daphnite(Fe,Mg)5Al(Si,Al)4O10(OH)8
Mgβ“˜ DiopsideCaMgSi2O6
Mgβ“˜ EnstatiteMg2Si2O6
Mgβ“˜ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Mgβ“˜ LizarditeMg3(Si2O5)(OH)4
Mgβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Mgβ“˜ TalcMg3Si4O10(OH)2
Mgβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ AnorthiteCa(Al2Si2O8)
Alβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Alβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Alβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Alβ“˜ Chamosite var. Daphnite(Fe,Mg)5Al(Si,Al)4O10(OH)8
Alβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alβ“˜ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Alβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Alβ“˜ PrehniteCa2Al2Si3O10(OH)2
Alβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
Siβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ AnorthiteCa(Al2Si2O8)
Siβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Siβ“˜ ChrysotileMg3(Si2O5)(OH)4
Siβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Siβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Siβ“˜ Chamosite var. Daphnite(Fe,Mg)5Al(Si,Al)4O10(OH)8
Siβ“˜ DiopsideCaMgSi2O6
Siβ“˜ EnstatiteMg2Si2O6
Siβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siβ“˜ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Siβ“˜ LizarditeMg3(Si2O5)(OH)4
Siβ“˜ OpalSiO2 · nH2O
Siβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Siβ“˜ PrehniteCa2Al2Si3O10(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ TalcMg3Si4O10(OH)2
Siβ“˜ TitaniteCaTi(SiO4)O
Siβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siβ“˜ ZirconZr(SiO4)
Siβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
PPhosphorus
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sβ“˜ BaryteBaSO4
Sβ“˜ BorniteCu5FeS4
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ ChalcociteCu2S
Sβ“˜ DigeniteCu9S5
Sβ“˜ MilleriteNiS
Sβ“˜ Pentlandite(NixFey)Ξ£9S8
Sβ“˜ PyriteFeS2
Sβ“˜ PyrrhotiteFe1-xS
Sβ“˜ SphaleriteZnS
ClChlorine
Clβ“˜ AtacamiteCu2(OH)3Cl
Clβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Caβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caβ“˜ AnorthiteCa(Al2Si2O8)
Caβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Caβ“˜ DiopsideCaMgSi2O6
Caβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caβ“˜ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Caβ“˜ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Caβ“˜ PrehniteCa2Al2Si3O10(OH)2
Caβ“˜ TitaniteCaTi(SiO4)O
Caβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiβ“˜ IlmeniteFe2+TiO3
Tiβ“˜ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Tiβ“˜ RutileTiO2
Tiβ“˜ TitaniteCaTi(SiO4)O
CrChromium
Crβ“˜ ChromiteFe2+Cr23+O4
FeIron
Feβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feβ“˜ BorniteCu5FeS4
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Feβ“˜ ChromiteFe2+Cr23+O4
Feβ“˜ Chamosite var. Daphnite(Fe,Mg)5Al(Si,Al)4O10(OH)8
Feβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feβ“˜ HematiteFe2O3
Feβ“˜ IlmeniteFe2+TiO3
Feβ“˜ IsoferroplatinumPt3Fe
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ Pentlandite(NixFey)Ξ£9S8
Feβ“˜ PyriteFeS2
Feβ“˜ PyrrhotiteFe1-xS
Feβ“˜ SideriteFeCO3
Feβ“˜ TetraferroplatinumPtFe
NiNickel
Niβ“˜ MilleriteNiS
Niβ“˜ Pentlandite(NixFey)Ξ£9S8
CuCopper
Cuβ“˜ AtacamiteCu2(OH)3Cl
Cuβ“˜ BorniteCu5FeS4
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ ChalcociteCu2S
Cuβ“˜ CopperCu
Cuβ“˜ DigeniteCu9S5
Cuβ“˜ Ξ±-BrassCu3Zn
ZnZinc
Znβ“˜ SphaleriteZnS
Znβ“˜ ZincZn
Znβ“˜ Ξ±-BrassCu3Zn
ZrZirconium
Zrβ“˜ BaddeleyiteZrO2
Zrβ“˜ ZirconZr(SiO4)
SnTin
Snβ“˜ TinSn
BaBarium
Baβ“˜ BaryteBaSO4
PtPlatinum
Ptβ“˜ IsoferroplatinumPt3Fe
Ptβ“˜ TetraferroplatinumPtFe
PbLead
Pbβ“˜ LeadPb

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References

 
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