 | Goodship, A., Dace, A., OāHare, P., Uwiringiyimana, J., Siddle, R., Moon, C. (2019) Geology and genesis of the Musha-Ntunga Sn-Ta-Li-Nb vein-pegmatite deposit, Rwanda: first results from deep drilling of a coltan mine in Rwanda and first detailed description of Li minerals. Applied Earth Science, 128 (2) 47-48 doi:10.1080/25726838.2019.1602953 | Journal (article/letter/editorial) | | vein-pegmatite deposit, Rwanda: ļ¬rst results from deep drilling of a coltan mine in Rwanda and ļ¬rst detailed...Musha and Ntunga concessions has mainly been of cassiterite and tantalite. Historical production from colonial...based on vein deposits hosting coarse grained cassiterite whereas Ntunga is from (<1 m to >30 m width)...Only pegmatites are known from the Musha-Ntunga area where their distribution appears to be controlled...However, the main phases of interest are coarse cassiterite and columbite-tantalite. In Musha the dominant |  | | Journal (article/letter/editorial) | | However, the main phases of interest are coarse cassiterite and columbite-tantalite. In Musha the dominant...some of which is present as late inclusions in cassiterite whereas Nb-rich phases are present in the Ntunga...of mineralisation found at the major Rutongo deposit in Rwanda (Dewaele et al. 2010) but dissimilar to...MF. 2010. Geology of the cassiterite mineralisation in the Rutongo area, Rwanda (Central Africa): current...and Ntunga deposits of the Karagwe-Ankole Belt, Rwanda. J Afr Earth Sci. 134:24ā32. Tack L, Wingate MTD |  | Van Daele, J., Hulsbosch, N., Dewaele, S., Boiron, M.-C., Piessens, K., Boyce, A., Muchez, Ph. (2018) Mixing of magmatic-hydrothermal and metamorphic fluids and the origin of peribatholitic Sn vein-type deposits in Rwanda. Ore Geology Reviews, 101. 481-501 doi:10.1016/j.oregeorev.2018.07.020 | Journal (article/letter/editorial) | | origin of peribatholitic Sn vein-type deposits in Rwanda J. Van Daele, N. Hulsbosch, S. Dewaele, M.-C. Boiron...origin of peribatholitic Sn vein-type deposits in Rwanda, Ore Geology Reviews (2018), doi: https://doi.org/10...origin of peribatholitic Sn vein-type deposits in Rwanda. Van Daele, J.a*, Hulsbosch, N.a, Dewaele, S.b...Keywords: leucogranite mineralization, pegmatites, cassiterite, quartz veins, fluid mixing, geochemical modelling...Rwamagana-Musha-Ntunga pegmatite-quartz vein field in East Rwanda has been evaluated by the following four methods: |  | | Journal (article/letter/editorial) | | Manuscript Vein-type Tungsten Deposits in Rwanda, Rutsiro area of the Karagwe-Ankole Belt, Central Africa...Piestrzynski, Vein-type Tungsten Deposits in Rwanda, Rutsiro area of the Karagwe-Ankole Belt, Central Africa...pertain. Vein-type Tungsten Deposits in Rwanda, Rutsiro area of the KaragweAnkole Belt, Central Africa...Mining Ltd., KG 624 ST, Bodifa House 5th floor, Kigali, Rwanda b AGH University of Science and Technology...samples contain a variety of minerals including cassiterite crystals, tourmaline and free ilmenite and rutile |  | | Journal (article/letter/editorial) | | host large amounts of mineral resources such as cassiterite, wolframite, gold, and columbite-group minerals...occurrences of economic interest, such as gold, cassiterite, wolframite, and (Nb-Ta) columbite-group minerals...KaragweAnkole Belt (KAB) to the northeast (Burundi, Rwanda, and Uganda). The KIB is separated from the KVB...based on U-Pb age determination of zircon in an area located between the KVB and KAB sections, five main...Ā± 23 Ma [30]. Furthermore, extensive dating in Rwanda, based on Rb/Sr, was invalidated in [17] using |  | Dewaele, S., De Clercq, F., Hulsbosch, N., Piessens, K., Boyce, A., Burgess, R., Muchez, Ph. (2016) Genesis of the vein-type tungsten mineralization at Nyakabingo (Rwanda) in the KaragweāAnkole belt, Central Africa. Mineralium Deposita, 51 (2) 283-307 doi:10.1007/s00126-015-0608-x | Journal (article/letter/editorial) | | vein-type tungsten mineralization at Nyakabingo (Rwanda) in the KaragweāAnkole belt, Central Africa S....deposit at Nyakabingo in the central Tungsten belt of Rwanda is located in the eastern flank of the complex...and the typical association of the W deposits in Rwanda, but also worldwide, with granite intrusions, W...Fluid flow . KaragweāAnkole belt . Neoproterozoic . Rwanda . Tungsten mineralization Editorial handling:...Lakes region of Central Africa and covers parts of Rwanda, Burundi, Uganda, Tanzania, and Eastern Congo. |  | | Book | | MINERALS& GEMSTONES of East Africa Burundi, Kenya, Rwanda, Tanzania and Uganda Bruce Cairncross Published... No. 4, Oxbow Crescent, Century Avenue, Century City, 7441 PO Box 1144, Cape Town, 8000 South Africa...East African resources 12 Burundi 13 Kenya 14 Rwanda 16 Tanzania 17 Uganda 20 Gemological properties...is not commonly known that neighbouring Uganda, Rwanda and Burundi are also sources of some interesting...the gem-quality tourmaline that can be found in Rwanda). Literature on the subject is limited; the previous |  | Loun, Jan, NovĆ”k, Milan, CempĆrek, Jan, Å koda, Radek, VaÅ”inovĆ” GaliovĆ”, Michaela, ProkeÅ”, LubomĆr, Dosbaba, Marek, ÄopjakovĆ”, Renata (2018) Geochemistry and secondary alterations of microlite from eluvial deposits in the Numbi mining area, South Kivu, Democratic Republic of the Congo. The Canadian Mineralogist, 56 (2) 203-220 doi:10.3749/canmin.1700091 | Journal (article/letter/editorial) | | MICROLITE FROM ELUVIAL DEPOSITS IN THE NUMBI MINING AREA, SOUTH KIVU, DEMOCRATIC REPUBLIC OF THE CONGO JAN...~1000ā900 Ma old Kibara belt unit, Numbi mining area, South Kivu province of the Democratic Republic...in the Mungwe pegmatite (lepidolite subtype) cassiterite . microlite-group minerals (microlite Ć¾ U-enriched...pegmatite (berylcolumbite subtype) microlite . cassiterite, columbiteātantalite Ć¾ wodginiteāferrowodginite...Yonsei University user MICROLITE FROM NUMBI MINING AREA, DRC 205 FIG. 1. Field photos of the studied localities |  | | Journal (article/letter/editorial) | | quartz veins: Evidence from the Karagwe-Ankole Belt (Rwanda) Niels Hulsbosch a,ā, Marie-Christine Boiron b...Nyakabingo deposit of the Karagwe-Ankole belt in Central Rwanda. The vein system (992 Ā± 2 Ma) is spatiotemporal...(986 Ā± 10 Ma to 975 Ā± 8 Ma) of the GatumbaāGitarama area which culminated in NbāTaāSn mineralisation. Muscovite...less-diļ¬erentiated pegmatite zones of the GatumbaāGitarama area. Pegmatitic muscovite records a decrease in W content...columbiteātantalite mineralised pegmatites of the GatumbaāGitarama area, emphasises the eļ¬ciency of ļ¬uid saturation to extract |  | | Report (issue) | | 0.6214 mile (mi) meter (m) 1.094 yard (yd) Area 2 square kilometer (km ) square kilometer (km2)...percent to 706 metric tons (t) from 660 t in 2010. Rwanda accounted for 27 percent of total mine production...Production of Mined Tantalum Minerals Brazil and Rwanda, which were the leading producers of tantalum ore...from tantalum-bearing pegmatite at the Mount Cassiterite and the South Tinstone open-cut mines. The Wodgina...including the Wodgina (albite type) and the Mount Cassiterite (albite-spodumene type) pegmatites, which contain |  | Hulsbosch, Niels, Hertogen, Jan, Dewaele, Stijn, AndrĆ©, Luc, Muchez, Philippe (2014) Alkali metal and rare earth element evolution of rock-forming minerals from the Gatumba area pegmatites (Rwanda): Quantitative assessment of crystal-melt fractionation in the regional zonation of pegmatite groups. Geochimica et Cosmochimica Acta, 132. 349-374 doi:10.1016/j.gca.2014.02.006 | Journal (article/letter/editorial) | | rock-forming minerals from the Gatumba area pegmatites (Rwanda): Quantitative assessment of crystal-melt...Gatumba pegmatite ļ¬eld (Rwanda, Central Africa) is chosen as case study area because of its well-developed...regionally zoned granitepegmatite system of the Fregeneda area was formed by three diļ¬erent paths of fractional...well-developed regional zonation in the Gatumba area (Rwanda, Central Africa). Feldspar, mica and tourmaline...zones. The Gatumba pegmatite ļ¬eld is a ļ¬rst-class area to study granite-pegmatite diļ¬erentiation processes |  | Amuda, Abdulgafar Kayode, Li, Shuang, Yang, Xiaoyong, Cao, Jingya, Faisal, Mohamed (2022) Genetic Association between Granites and Mineralization at the Gindi Akwati CassiteriteāSulfide Deposit, North-Central Nigeria: Insights from Mineralogy, Fluid Inclusions, and Sulfur Isotopes. Minerals, 12 (6) 761 doi:10.3390/min12060761 | Journal (article/letter/editorial) | | Granites and Mineralization at the Gindi Akwati CassiteriteāSulfide Deposit, North-Central Nigeria: Insights...Granites and Mineralization at the Gindi Akwati CassiteriteāSulfide Deposit, North-Central Nigeria: Insights...Tel.: +86-0551-6465-2201 (X.Y.) Abstract: The cassiteriteāsulfide mineralization occurs within quartz veins...creativecommons.org/licenses/by/ 4.0/). Keywords: cassiteriteāsulfide mineralization; fluid inclusion; sulfur...granites are biotite granites, which contain cassiterite and columbite-(Fe) as accessory phases in greisen |  | Makutu, Douxdoux Kumakele, Seo, Jung Hun, Lee, Insung, Oh, Jihye, Kang, Pilmo, Ongendangenda, Albert Tienge, Makoka, Frederic Mwanza (2023) Magmatic-Hydrothermal Fluid Processes of the Sn-W Granites in the Maniema Province of the Kibara Belt (KIB), Democratic Republic of Congo. Minerals, 13 (4) 458 doi:10.3390/min13040458 | Journal (article/letter/editorial) | | the Maniema province hosts orebodies bearing cassiterite-wolframite, which are associated with equigranular...(SEM-CL) on cassiterite grains, reveal two types of cassiterite: yellow transparent cassiterite (lighter...(lighter under SEM-CL: type I) and dark translucent cassiterite (darker under SEM-CL: type II). These types are...replacement zones (type II replaces type I). Unlike cassiterite, wolframite is texturally homogenous. LA-ICP-MS...LA-ICP-MS results reveal that type II cassiterite is relatively enriched in Fe, Al, Ga, In, As, Pb, Zn, and |  | Tack, L., Wingate, M.T.D., De Waele, B., Meert, J., Belousova, E., Griffin, B., Tahon, A., Fernandez-Alonso, M. (2010) The 1375Ma āKibaran eventā in Central Africa: Prominent emplacement of bimodal magmatism under extensional regime. Precambrian Research, 180 (1) 63-84 doi:10.1016/j.precamres.2010.02.022 | Journal (article/letter/editorial) | | the SW, through Katanga and Kivu-Maniema (DRC), Rwanda and Burundi, up to SW Uganda and NW Tanzania in...Ubende-Rusizian terranes, i.e. in the Kibara Mountains type area of Katanga (DRC). The other belt situated NE of...the DRC, which includes the Kibara Mountains type area (Fig. 1a). For the part to the NE of this extension...Synthetic Aperture Radar (SAR) mosaic image of the box area in (a) showing the prominent structural and physiographic...rocks and subordinate maļ¬c rocks (Fig. 3). In W Rwanda, preliminary data suggest that the WD is underlain |  | Melcher, Frank, Graupner, Torsten, GƤbler, Hans-Eike, Sitnikova, Maria, Henjes-Kunst, Friedhelm, OberthĆ¼r, Thomas, Gerdes, Axel, Dewaele, Stijn (2015) Tantalumā(niobiumātin) mineralisation in African pegmatites and rare metal granites: Constraints from TaāNb oxide mineralogy, geochemistry and UāPb geochronology. Ore Geology Reviews, 64. 667-719 doi:10.1016/j.oregeorev.2013.09.003 | Journal (article/letter/editorial) | | countries (Democratic Republic CE P of the Congo, Rwanda, Burundi, and Uganda) have an almost 100-year-long...phase. It is structurally related to rutile and cassiterite, which explains elevated Ti and Sn concentrations...Leone) Alluvial deposits of columbite-tantalite, cassiterite and rutile, related to late-orogenic granites...revealed that āilmenorutileā from the Tonkolili district is in fact an intergrowth of columbite and rutile...significant ilmenite, garnet, and some monazite, cassiterite and zircon. Age estimates for columbite according |  | Fosso Tchunte, Periclex Martial, Tchameni, Rigobert, AndrĆ©-Mayer, Anne-Sylvie, Dakoure, Hilaire Somtebda, Turlin, FranƧois, Poujol, Marc, Nomo, Emmanuel Negue, Saha Fouotsa, Alliance Nicaise, Rouer, Olivier (2018) Evidence for Nb-Ta Occurrences in the Syn-Tectonic Pan-African Mayo Salah Leucogranite (Northern Cameroon): Constraints from Nb-Ta Oxide Mineralogy, Geochemistry and U-Pb LA-ICP-MS Geochronology on Columbite and Monazite. Minerals, 8 (5) 188 doi:10.3390/min8050188 | Journal (article/letter/editorial) | | Nb-Ta-Sn as columbite-tantalite (Coltan) and cassiterite, and these granites have relatively low Zr/Hf...8, 188 3 of 35 Figure 1. Location of the study area within the network of Pan-African belt, and the...African rare-element Figure 1. Location of the study area within the network of Pan-African belt, and the...Central Africa Fold Belt (CAFB). Early works this area mainly focused on tectonic evolution and the associated...associated magmatic activity in order to in this area mainly focused on tectonic evolution and the associated |  | | Journal (issue) | | Gemmological Brief 344 Green and Pink Tourmaline from Rwanda By Ulrich Henn and Fabian Schmitz 350 Conferences...Williams, Stone Group Laboratories LLC, Jefferson City, Missouri, USA; J.C. (Hanco) Zwaan, National Museum...heat-treated sapphires from the Nigeria-Cameroon area. 279 Whatās New Margaritologia Pearl Newsletter...in gem reference books. Nevertheless, this āno-go areaā has been vigorously pursued by Hoover and Linton...Erving-MA.aspx). The garnets were mined from an area near Erving, Massachusetts, by Jason Baskin of Jayās |  | | Journal (issue) | | 520-527 Tanakamiyama, a classic Japanese pegmatite district 530-542 The Joaquin Folch Girona mineral collection... Barcelona, Spain 544-550 Shattuckite, Kunene District, Kaokoveld, Namibia 557-558 Collecting at Hallelujah... 91-112 Geology of the cassiterite mineralisation in the Rutongo area, Rwanda ļ· ROCKS AND MINERALS 85(2)...(Ā°1950) 154-159 Annabergite, km 3 mine, Laurium district, Greece 160-163 Rochester mineralogical symposium... Test "Triple" SW : Powellite (Mahodri near Nasik district, Maharashtra, India) Links : daglicht, rechts |  | | Conference Proceedings (Volume) | | Mpuluzi and Heerenveen granites/pegmatites (Barberton area, South Africa): a possible source for the Dominion...Uranium mineralization in the RetortilloāSantidad Area (Salamanca, Spain): role of late alteration .....through polycyclic orogeny: the example of the Litsa district, Russia Anne-Sylvie AndrĆ©-Mayer, Michel Cuney...mantle-crustal ore-forming systems of the Pechenga ore district (Fennoscandian shield) ........................magmatic Sc-Zr occurrence located in the Kiviniemi area, Rautalampi, Central Finland .................. |
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