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Nkamouna Mine, Lomié Ultramafic complex, Lomié, East Region, Cameroon

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Latitude & Longitude (WGS84): 3° 16' 0'' North , 13° 50' 43'' East
Latitude & Longitude (decimal): 3.26667,13.84528
GeoHash:G#: s29fe49vd
Locality type:Mine
Köppen climate type:Aw : Tropical savanna, wet

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.

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!

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Alphabetical List Tree Diagram

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

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

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.


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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.

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