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Nkenga complex, Njombe Region, Tanzaniai
Regional Level Types
Nkenga complex- not defined -
Njombe RegionRegion
TanzaniaCountry

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Latitude & Longitude (WGS84):
9° 7' 59'' South , 34° 1' 0'' East
Latitude & Longitude (decimal):
-9.13333,34.01667
GRN:
S07E24
Köppen climate type:
Cwb : Subtropical highland climate or temperate oceanic climate with dry winters
Nearest Settlements:
PlacePopulationDistance
Matamba10,642 (2018)17.6km
Kandete10,318 (2016)23.8km
Chimala24,817 (2016)30.8km
Igurusi24,895 (2012)36.4km
Masoko12,720 (2016)36.7km
Mindat Locality ID:
307135
Long-form identifier:
mindat:1:2:307135:2
GUID (UUID V4):
0


Mafic-ultramafic body located in the central part of the Ubendian metamorphic belt.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


23 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ 'Clinopyroxene Subgroup'
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ 'Fayalite-Forsterite Series'
ⓘ 'Ferritchromit'
ⓘ Forsterite
Formula: Mg2(SiO4)
ⓘ Geversite
Formula: PtSb2
ⓘ Heazlewoodite
Formula: Ni3S2
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Irarsite
Formula: (Ir,Ru,Rh,Pt)AsS
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Millerite
Formula: NiS
ⓘ Native Copper
Formula: Cu
ⓘ Native Gold var. Electrum
Formula: (Au,Ag)
ⓘ Native Osmium
Formula: (Os,Ir,Ru)
ⓘ Native Platinum
Formula: Pt
ⓘ Pentlandite
Formula: (NixFey)Σ9S8
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Ruarsite
Formula: (Ru,Os)AsS
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Sperrylite
Formula: PtAs2
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
ⓘNative Gold
var. Electrum		1.AA.05(Au,Ag)
ⓘNative Osmium1.AF.05(Os,Ir,Ru)
ⓘNative Platinum1.AF.10Pt
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘHeazlewoodite2.BB.05Ni3S2
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘMillerite2.CC.20NiS
ⓘGeversite2.EB.05aPtSb2
ⓘPyrite2.EB.05aFeS2
ⓘSperrylite2.EB.05aPtAs2
ⓘRuarsite2.EB.20(Ru,Os)AsS
ⓘIrarsite2.EB.25(Ir,Ru,Rh,Pt)AsS
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
Group 9 - Silicates
ⓘForsterite9.AC.05Mg2(SiO4)
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)
ⓘ'Ferritchromit'-

List of minerals for each chemical element

HHydrogen
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ DiopsideCaMgSi2O6
Oⓘ ForsteriteMg2(SiO4)
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ Fayalite-Forsterite Series
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ ForsteriteMg2(SiO4)
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ DiopsideCaMgSi2O6
Siⓘ ForsteriteMg2(SiO4)
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ Fayalite-Forsterite Series
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ HeazlewooditeNi3S2
Sⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Sⓘ MilleriteNiS
Sⓘ Pentlandite(NixFey)Σ9S8
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ Ruarsite(Ru,Os)AsS
ClChlorine
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ DiopsideCaMgSi2O6
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
FeIron
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Pentlandite(NixFey)Σ9S8
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Fayalite-Forsterite Series
NiNickel
Niⓘ HeazlewooditeNi3S2
Niⓘ MilleriteNiS
Niⓘ Pentlandite(NixFey)Σ9S8
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ Native CopperCu
AsArsenic
Asⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Asⓘ Ruarsite(Ru,Os)AsS
Asⓘ SperrylitePtAs2
RuRuthenium
Ruⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ruⓘ Native Osmium(Os,Ir,Ru)
Ruⓘ Ruarsite(Ru,Os)AsS
RhRhodium
Rhⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
AgSilver
Agⓘ Native Gold var. Electrum(Au,Ag)
SbAntimony
Sbⓘ GeversitePtSb2
OsOsmium
Osⓘ Native Osmium(Os,Ir,Ru)
Osⓘ Ruarsite(Ru,Os)AsS
IrIridium
Irⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Irⓘ Native Osmium(Os,Ir,Ru)
PtPlatinum
Ptⓘ GeversitePtSb2
Ptⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ptⓘ Native PlatinumPt
Ptⓘ SperrylitePtAs2
AuGold
Auⓘ Native Gold var. Electrum(Au,Ag)

Other Regions, Features and Areas containing this locality

AfricaContinent
African Plate
Somali 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

Evans, David M., Barrett, Finn M., Prichard, Hazel M., Fisher, Peter C. (2012) Platinum–palladium–gold mineralization in the Nkenja mafic–ultramafic body, Ubendian metamorphic belt, Tanzania. Mineralium Deposita, 47 (1) 175-196 doi:10.1007/s00126-011-0353-8
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