SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Nkamouna Mine, Lomié Ultramafic complex, Lomié, East Region, Camerooni
Regional Level Types
Nkamouna MineMine
Lomié Ultramafic complexComplex
Lomié- not defined -
East Region- not defined -
CameroonCountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84):
3° 16' 0'' North , 13° 50' 43'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:


Laterite-type nickel-cobalt-manganese deposit, developed on serpentinized ultramafic rocks. An open-pit mine is operated by Geovic Mining Corp.
Located about 30km NE of Lomié.
Co-ordinates are approximate.

Regions containing this locality

African PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


24 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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:

Antigorite
Formula: Mg3(Si2O5)(OH)4
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.; Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Arsenopyrite
Formula: FeAsS
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Asbolane
Formula: (Ni,Co)2-xMn4+(O,OH)4 · nH2O
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.
Beidellite
Formula: (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Reference: Yongue-Fouateu, R., Yemefack, M., Wouatong, A.S.L., Ndjigui, P.D., and Bilong, P. (2009): Clay Minerals 44(2), 221-237
Carrollite
Formula: Cu(Co,Ni)2S4
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Chalcopyrite
Formula: CuFeS2
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Chromite
Formula: Fe2+Cr3+2O4
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.
Cubanite
Formula: CuFe2S3
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Dolomite
Formula: CaMg(CO3)2
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Ernienickelite
Formula: NiMn3O7 · 3H2O
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.; Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
'Fayalite-Forsterite Series'
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.
'Ferritchromit'
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.; Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
'Garnierite'
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.; Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Gibbsite
Formula: Al(OH)3
Reference: Yongue-Fouateu, R., Yemefack, M., Wouatong, A.S.L., Ndjigui, P.D., and Bilong, P. (2009): Clay Minerals 44(2), 221-237
Goethite
Formula: α-Fe3+O(OH)
Reference: Yongue-Fouateu, R., Yemefack, M., Wouatong, A.S.L., Ndjigui, P.D., and Bilong, P. (2009): Clay Minerals 44(2), 221-237
Heazlewoodite
Formula: Ni3S2
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Yongue-Fouateu, R., Yemefack, M., Wouatong, A.S.L., Ndjigui, P.D., and Bilong, P. (2009): Clay Minerals 44(2), 221-237
'Kerolite'
Formula: (Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1)
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.
Maghemite
Formula: Fe3+2O3
Reference: Yongue-Fouateu, R., Yemefack, M., Wouatong, A.S.L., Ndjigui, P.D., and Bilong, P. (2009): Clay Minerals 44(2), 221-237
Magnesite
Formula: MgCO3
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Yongue-Fouateu, R., Yemefack, M., Wouatong, A.S.L., Ndjigui, P.D., and Bilong, P. (2009): Clay Minerals 44(2), 221-237; Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.
Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.
Pentlandite
Formula: (FexNiy)Σ9S8
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
'Pyroxene Group'
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Pyrrhotite
Formula: Fe7S8
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Quartz
Formula: SiO2
Reference: Yongue-Fouateu, R., Yemefack, M., Wouatong, A.S.L., Ndjigui, P.D., and Bilong, P. (2009): Clay Minerals 44(2), 221-237; Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Quartz var: Chalcedony
Formula: SiO2
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.; Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Spinel
Formula: MgAl2O4
Reference: Dzemua, G. L., & Gleeson, S. A. (2012). Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.
Talc
Formula: Mg3Si4O10(OH)2
Reference: Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Carrollite2.DA.05Cu(Co,Ni)2S4
Chalcopyrite2.CB.10aCuFeS2
Cubanite2.CB.55aCuFe2S3
Heazlewoodite2.BB.05Ni3S2
Pentlandite2.BB.15(FexNiy)Σ9S8
Pyrrhotite2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
Asbolane4.FL.30(Ni,Co)2-xMn4+(O,OH)4 · nH2O
Chromite4.BB.05Fe2+Cr3+2O4
Ernienickelite4.FL.20NiMn3O7 · 3H2O
Gibbsite4.FE.10Al(OH)3
Goethite4.00.α-Fe3+O(OH)
Maghemite4.BB.15Fe3+2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Spinel4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
Dolomite5.AB.10CaMg(CO3)2
Magnesite5.AB.05MgCO3
Group 9 - Silicates
Antigorite9.ED.15Mg3(Si2O5)(OH)4
Beidellite9.EC.40(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Nontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Talc9.EC.05Mg3Si4O10(OH)2
Unclassified Minerals, Rocks, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Fayalite-Forsterite Series'-
'Ferritchromit'-
'Garnierite'-
'Kerolite'-(Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1)
'Limonite'-(Fe,O,OH,H2O)
'Pyroxene Group'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 3:2
Heazlewoodite2.5.3.1Ni3S2
AmBnXp, with (m+n):p = 9:8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Cubanite2.9.13.1CuFe2S3
AmBnXp, with (m+n):p = 3:4
Carrollite2.10.1.2Cu(Co,Ni)2S4
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Group 4 - SIMPLE OXIDES
A2X3
Maghemite4.3.7.1Fe3+2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
X(OH)3
Gibbsite6.3.1.1Al(OH)3
Miscellaneous
Asbolane6.4.9.1(Ni,Co)2-xMn4+(O,OH)4 · nH2O
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
AB3X7
Ernienickelite7.8.2.4NiMn3O7 · 3H2O
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Magnesite14.1.1.2MgCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Antigorite71.1.2a.1Mg3(Si2O5)(OH)4
Sheets of 6-membered rings with 2:1 layers
Talc71.2.1.3Mg3Si4O10(OH)2
Sheets of 6-membered rings with 2:1 clays
Beidellite71.3.1a.1(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Nontronite71.3.1a.3Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Fayalite-Forsterite Series'-
'Ferritchromit'-
'Garnierite'-
Kaolinite-Al2(Si2O5)(OH)4
'Kerolite'-(Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1)
'Limonite'-(Fe,O,OH,H2O)
'Pyroxene Group'-
Quartz
var: Chalcedony
-SiO2
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals for each chemical element

HHydrogen
H Goethiteα-Fe3+O(OH)
H KaoliniteAl2(Si2O5)(OH)4
H GibbsiteAl(OH)3
H Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
H Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
H Limonite(Fe,O,OH,H2O)
H TalcMg3Si4O10(OH)2
H ErnienickeliteNiMn3O7 · 3H2O
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
H Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
H Kerolite(Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1)
H AntigoriteMg3(Si2O5)(OH)4
H ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
C MagnesiteMgCO3
C DolomiteCaMg(CO3)2
OOxygen
O Goethiteα-Fe3+O(OH)
O QuartzSiO2
O MagnetiteFe2+Fe23+O4
O MaghemiteFe23+O3
O KaoliniteAl2(Si2O5)(OH)4
O GibbsiteAl(OH)3
O Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
O Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
O Limonite(Fe,O,OH,H2O)
O Quartz (var: Chalcedony)SiO2
O TalcMg3Si4O10(OH)2
O ErnienickeliteNiMn3O7 · 3H2O
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
O ChromiteFe2+Cr23+O4
O Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
O Kerolite(Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1)
O AntigoriteMg3(Si2O5)(OH)4
O MagnesiteMgCO3
O SpinelMgAl2O4
O ApatiteCa5(PO4)3(Cl/F/OH)
O DolomiteCaMg(CO3)2
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Na NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
MgMagnesium
Mg Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
Mg TalcMg3Si4O10(OH)2
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mg Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Mg Kerolite(Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1)
Mg AntigoriteMg3(Si2O5)(OH)4
Mg MagnesiteMgCO3
Mg SpinelMgAl2O4
Mg DolomiteCaMg(CO3)2
AlAluminium
Al KaoliniteAl2(Si2O5)(OH)4
Al GibbsiteAl(OH)3
Al Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Al NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Al Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Al SpinelMgAl2O4
SiSilicon
Si QuartzSiO2
Si KaoliniteAl2(Si2O5)(OH)4
Si Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Si Quartz (var: Chalcedony)SiO2
Si TalcMg3Si4O10(OH)2
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Si Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Si Kerolite(Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1)
Si AntigoriteMg3(Si2O5)(OH)4
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S HeazlewooditeNi3S2
S CubaniteCuFe2S3
S ChalcopyriteCuFeS2
S Pentlandite(FexNiy)Σ9S8
S ArsenopyriteFeAsS
S PyrrhotiteFe7S8
S CarrolliteCu(Co,Ni)2S4
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Ca Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Ca Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca DolomiteCaMg(CO3)2
CrChromium
Cr ChromiteFe2+Cr23+O4
MnManganese
Mn Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
Mn ErnienickeliteNiMn3O7 · 3H2O
Mn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe MagnetiteFe2+Fe23+O4
Fe MaghemiteFe23+O3
Fe Limonite(Fe,O,OH,H2O)
Fe NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Fe ChromiteFe2+Cr23+O4
Fe Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Fe CubaniteCuFe2S3
Fe ChalcopyriteCuFeS2
Fe Pentlandite(FexNiy)Σ9S8
Fe ArsenopyriteFeAsS
Fe PyrrhotiteFe7S8
CoCobalt
Co Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
Co CarrolliteCu(Co,Ni)2S4
NiNickel
Ni Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
Ni ErnienickeliteNiMn3O7 · 3H2O
Ni Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Ni Kerolite(Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1)
Ni HeazlewooditeNi3S2
Ni Pentlandite(FexNiy)Σ9S8
Ni CarrolliteCu(Co,Ni)2S4
CuCopper
Cu CubaniteCuFe2S3
Cu ChalcopyriteCuFeS2
Cu CarrolliteCu(Co,Ni)2S4
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
AsArsenic
As ArsenopyriteFeAsS

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neoproterozoic
541 - 1000 Ma



ID: 3311382

Age: Neoproterozoic (541 - 1000 Ma)

Lithology: Metamorphic

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Ectasian - Paleoproterozoic
1200 - 2500 Ma



ID: 3185894
Paleoproterozoic-Mesoproterozoic sedimentary rocks

Age: Proterozoic (1200 - 2500 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Lambert, R.J., Noble, A.C. (2008) Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp. - for mineralogy see: http://www.geovic.net/userfiles/file/tech_reports/2006/9.0%20Mineralization.pdf
Yongue-Fouateu, R., Yemefack, M., Wouatong, A.S.L., Ndjigui, P.D., Bilong, P. (2009) Contrasted mineralogical composition of the laterite cover on serpentinites of Nkamouna-Kongo, southeast Cameroon. Clay Minerals 44(2), 221-237. DOI: 10.1180/claymin.2009.044.2.221
Dzemua, G. L., Gleeson, S. A. (2012) Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of the Cobalt-Manganese Laterite Deposit, Southeast Cameroon. Economic Geology, 107(1), 25-41.


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.
 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 18, 2019 19:48:00 Page generated: April 29, 2019 17:46:54
Go to top of page