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Tanzania

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References:
- McKie, Duncan (1957): A synopsis of mineral parageneses in complex pegmatites of Tanganyika. in Commision de Coopération Technique en Afrique au Sud du Sahara (C.C.T.A.). Geologie. Comités regionaux Centre, Est et Sud. Conférence de Tananarive Avril 1957. I, 159-172




Mineral list contains entries from the region specified including sub-localities


Mineral List:
  		•  Aegirine
    NaFe
    3+
     
    		[Si
     
    2
    		O
     
    6
    		]
    Reference: [Journal of Conference Abstracts , Volume 2 Number 1 , vsg - Minsoc '97, http://www.the-conference.com/JConfAbs/2/26.html]
  		•  Aegirine-augite
    (Na,Ca)(Fe
    3+
     
    		,Fe
    2+
     
    		,Mg,Al)Si
     
    2
    		O
     
    6
    Reference: [Mineralogical Magazine 1964 33 : 1057-1065.]
  		•  Aenigmatite
    Na
     
    2
    		Fe
    2+
    5
    		TiO
     
    2
    		(Si
     
    6
    		O
     
    18
    		)
    Reference: [Journal of Conference Abstracts , Volume 2 Number 1 , vsg - Minsoc '97, http://www.the-conference.com/JConfAbs/2/26.html]
  		•  Alabandite
    Mn
    2+
     
    		S
    Description: "Fe-alabandite"
    Reference: [Mitchell, R.H. (2000) "The July 2000 expedition to the natrocarbonatite volcano Oldoinyo Lengai. Newsletter of the Mineralogical Association of Canada, # 63 (Dec. 2000).; Mineralogical Magazine 1997 61 : 779-789]
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Hintze, J. (2009): Tiefgrüne Sphene aus Tansania. Lapis 34 (10), 29-30.]
  		•  Albite
    var: Oligoclase
    (Na,Ca)[Al(Si,Al)Si
     
    2
    		O
     
    8
    		]
    Reference: [Mineralogical Magazine 1964 33 : 1057-1065.]
  		•  'Albite-Anorthite Series'
    Reference: [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 42; Min. Mag. 32, 10-25]
  		•  'Almandine-Pyrope Series
    var: Umbalite'
    Reference: []
    Site Photo
    Umba River (Umba Valley), Tanga Region, Tanzania
    © Jasun McAvoy
  		•  Aluminotschermakite
    ☐[Ca
     
    2
    		][Mg
     
    3
    		Al
     
    2
    		][(OH)
     
    2
    		|Al
     
    2
    		Si
     
    6
    		O
     
    22
    		]
    Reference: [www.excaliburmineral.com/mina-c.htm]
    Site Photo
    Longido, Mt Kilimanjaro, Kilimanjaro Region, Tanzania
    © 2008 Jesse Crawford
  		•  'Amphibole Group'
    Reference: [Journal of African Earth Sciences ]
  		•  Andalusite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Reference: [J. Petrology 45,1959-1981(2004)]
  		•  Andradite
    Ca
     
    3
    		Fe
    3+
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [www.koeln.netsurf.de/~w.steffens/other.htm]
  		•  Ankerite
    Ca(Fe
    2+
     
    		 ,Mg,Mn
    2+
     
    		)(CO
     
    3
    		)
     
    2
    Reference: [Kühn, S. & Germann, K. (1992): Metallogenetisches Modell für die an eine archaische Eisenformation gebundene Gold-Sulfid-Vererzung von Geita, Tansania. Z. angew. Geol. 38, 105-106.]
  		•  Anorthoclase
    (Na,K)[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Stern, W.B. (1969): Contributions to Mineralogy and Petrology 20, 198-202.]
  		•  'Anyolite'
    Reference: []
  		•  'Apatite'
    Reference: [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 42; Min. Mag. 32, 10-25; Min. Mag. 32, 10-25]
  		•  Apatite-(CaF)
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    Reference: [Mineralogical Record (2009) 40:347-408]
    Site Photo
    D-Block Mine, Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
    © vasco trancoso
  		•  Apatite-(CaF)
    var: Francolite
    Reference: [Journal of African Earth Sciences ]
  		•  Arsenopyrite
    FeAsS - (Fe
     
    0.90
    		Co
     
    0.10
    		)AsS
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  Augite
    (Ca,Na)(Mg,Fe
    2+
     
    		,Al,Fe
    3+
     
    		,Ti)[(Si,Al)
     
    2
    		O
     
    6
    		]
    Description: In lava.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
    Site Photo
    Arusha Region, Tanzania
    © 2001 John H. Betts
  		•  Augite
    var: Titanian Augite
    (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)
     
    2
    		O
     
    6
    Description: In olivine melilite lava.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  Axinite-(Mg) (TL)
    Ca
     
    2
    		MgAl
     
    2
    		[OH|BSi
     
    4
    		O
     
    15
    		]
    Type Locality: Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
    Reference: [P Bongaerts collection; Mineralogical Record (2009) 40:347-408]
    Site Photo
    Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
    © MAWINGU GEMS
  		•  Bariopyrochlore (TL)
    (Ba,Sr)
     
    2-x
    		(Nb,Ti)
     
    2
    		(O,OH)
     
    7
    Type Locality: Panda Hill, Mbeya, Amboseli, Mbeya Region, Tanzania
    Reference: [Min. Mag. 32, 10-25]
  		•  Beryl
    var: Aquamarine
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
    Reference: [www.johnbetts-fineminerals.com]
    Site Photo
    Dar es Salaam, Uluguru Mts (Uruguru Mts), Dar es Salaam Region, Tanzania
    © 2002 John H. Betts
  		•  Beryl
    var: Emerald
    Reference: [Journal of Gemology, Volume 26, No. 2 - Mineral Inclusions in Emeralds from Different Sources]
  		•  Biotite
    Reference: [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 42; Min. Mag. 32, 10-25]
  		•  Bixbyite
    (Mn
    3+
     
    		,Fe
    3+
     
    		)
     
    2
    		O
     
    3
    Reference: [www.min.uni-kiel.de/petrographie/schenk/projekte/tansania/mautia/dmg_mautia.pdf.]
  		•  Breithauptite
    NiSb
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  Calcite
    CaCO
     
    3
    Reference: [Tanz. J. Sci. Vol.29(2) 2003: 55-70; Mineralogical Record (2009) 40:347-408]
  		•  'Chabazite'
    Reference: [Collection of Werner Radl.]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [Can. Mineral. 46 (2008) 1183-1194; Mineralogical Record (2009) 40:347-408]
  		•  Chevkinite-(Ce)
    (Ce,La,Ca,Th)
     
    4
    		(Fe
    2+
     
    		,Mg)(Fe
    2+
     
    		,Ti,Fe
    3+
     
    		)
     
    2
    		(Ti,Fe
    3+
     
    		)
     
    2
    		[O
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
     
    2
    Description: In quartz trachytes.
    Reference: [Mineralogical Magazine, Vol. 66, N. 2, 1st April 2002, pp. 287-299.]
  		•  'Chlorite Group'
    Reference: [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 42; Min. Mag. 32, 10-25]
  		•  Chondrodite
    (Mg,Fe
    2+
     
    		)
     
    5
    		[(F,OH)
     
    2
    		|(SiO
     
    4
    		)
     
    2
    		]
    Reference: [Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ]
  		•  Chromite
    FeCr
     
    2
    		O
     
    4
    Reference: [R.L. Rudnick et al. , Earth and Planetary Science Letters, 114, 1993, pp. 463-475.]
  		•  Chrysoberyl
    BeAl
     
    2
    		O
     
    4
    Reference: []
  		•  Chrysoberyl
    var: Alexandrite
    Reference: [Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ]
    Site Photo
    Tanzania
    © 2003 John H. Betts
  		•  Clinohumite
    (Mg,Fe
    2+
     
    		)
     
    9
    		[(F,OH)
     
    2
    		|(SiO
     
    4
    		)
     
    4
    		]
    Reference: [Min Rec 36:3 p294]
  		•  'Clinopyroxene Subgroup'
    Reference: []
  		•  Columbite
    (Fe,Mn)(Nb,Ta)
     
    2
    		O
     
    6
    Reference: [Min. Mag. 32, 10-25]
  		•  Combeite
    Na
     
    2
    		Ca
     
    2
    		Si
     
    3
    		O
     
    9
    Reference: [www.koeln.netsurf.de/~w.steffens/other.htm]
    Site Photo
    Mt. Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania
    © Tony Peterson
  		•  Cordierite
    (Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    5
    		O
     
    18
    Reference: ["Colored Gemstones of Africa", Rocks and Minerals, March/April 2002.]
    Site Photo
    Babati, Babati District, Manyara Region, Tanzania
    © JSS
  		•  Corundum
    Al
     
    2
    		O
     
    3
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
    Site Photo
    Dodoma Region, Tanzania
     
  		•  Corundum
    var: Ruby
    Al
     
    2
    		O
     
    3
    Reference: [Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ]
    Site Photo
    Tanzania
    © Rob Lavinsky
  		•  Corundum
    var: Sapphire
    Al
     
    2
    		O
     
    3
    Reference: []
    Site Photo
    Tanzania
    © Rob Lavinsky
  		•  Cuspidine
    Ca
     
    4
    		[(F,OH)
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    Description: Occurs in a solid solution with niocalite.
    Reference: [Mitchell, R.H. and Belton, F. (2004) Niocalite-cuspidine solid solution and manganoan monticellite from natrocarbonatite, Oldoinyo Lengai, Tanzania. Mineralogical Magazine: 68: 787-799.]
  		•  Dawsonite
    NaAlCO
     
    3
    		(OH)
     
    2
    Reference: [No reference listed]
  		•  Diamond
    C
    Reference: [Mining Ann. Review (1985): 440; Rocks & Min.: 22:306.]
  		•  Diopside
    CaMg[Si
     
    2
    		O
     
    6
    		]
    Reference: [Mineralogical Record (2009) 40:347-408]
    Site Photo
    Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
    © John A. Jaszczak
  		•  Diopside
    var: Chromian Diopside
    (Ca,Cr)MgSi
     
    2
    		O
     
    6
    Description: Low Al.
    Reference: [R.L. Rudnick et al. , Earth and Planetary Science Letters, 114, 1993, pp. 463-475.]
  		•  Dolomite
    CaMg(CO
     
    3
    		)
     
    2
    Reference: [Mineralogical Magazine 1963 33 : 635-645]
  		•  Dravite
    [Na][Mg
     
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [Mineralogical Record (2009) 40:347-408]
    Site Photo
    Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
    © Rob Lavinsky
  		•  Elbaite
    var: Chromian Elbaite
    Description: Shows the so called Usambara effect, with hue changing from green to red with increases in path length of light through the material.
    Reference: [Journal of Gemmology 1999, Volume 26 No. 6, 386-96]
    Site Photo
    Umba River (Umba Valley), Tanga Region, Tanzania
    © 2002 John H. Betts
  		•  Enstatite
    Mg
     
    2
    		[SiO
     
    3
    		]
     
    2
    Reference: [Mineralogical Magazine 1963 33 : 635-645]
    Site Photo
    Tanzania
    © Danny Jones
  		•  Enstatite
    var: Bronzite
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    3
    		]
     
    2
    Reference: [J.B. Dawson, Journal of Petrology, 2002, V 43, N° 9, pp. 1749-1777.]
  		•  Eudialyte
    Na
     
    15
    		Ca
     
    6
    		(Fe
    2+
     
    		,Mn
    2+
     
    		)
     
    3
    		Zr
     
    3
    		[Si
     
    25
    		O
     
    73
    		](O,OH,H
     
    2
    		O)
     
    3
    		(OH,Cl)
     
    2
    Description: In phonolite.
    Reference: [Journal of Conference Abstracts , Volume 2 Number 1 , vsg - Minsoc '97, http://www.the-conference.com/JConfAbs/2/26.html]
  		•  'Feldspar Group'
    Reference: [Journal of African Earth Sciences ]
  		•  Fluorite
    CaF
     
    2
    Reference: [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 42; Min. Mag. 32, 10-25]
  		•  Forsterite
    Mg
     
    2
    		[SiO
     
    4
    		]
    Reference: [R.L. Rudnick et al. , Earth and Planetary Science Letters, 114, 1993, pp. 463-475.]
  		•  Galena
    PbS
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  'Garnet Group'
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
    Reference: [Min. Mag. 32, 10-25]
  		•  Gersdorffite
    NiAsS
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  'Glass'
    Description: P-rich glass.
    Reference: [R.L. Rudnick et al. , Earth and Planetary Science Letters, 114, 1993, pp. 463-475.]
  		•  Gold
    Au
    Reference: [Mining Ann. Review(1985):440.]
  		•  Gold
    var: Electrum
    (Au, Ag)
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  Graphite
    C
    Reference: [Can. Mineral. 46 (2008) 1183-1194; Mineralogical Record (2009) 40:347-408]
    Site Photo
    Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
    © John A. Jaszczak
  		•  Gregoryite (TL)
    (Na
     
    2
    		,K
     
    2
    		,Ca)CO
     
    3
    Type Locality: Mt. Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania
    Reference: [Lithos 13 (1980), 213; American Mineralogist, 66, pp. 879 (1981); Mineralogical Magazine 1997 61 : 779-789]
    Site Photo
    Mt. Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania
    © Tony Peterson
  		•  Grossular
    Ca
     
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Mineralogical Record (2009) 40:347-408]
    Site Photo
    Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
    © 2003 John H. Betts
  		•  Grossular
    var: Tsavorite
    Reference: [MinRec 31:63]
    Site Photo
    Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
    © Rob Lavinsky
  		•  Gudmundite
    FeSbS
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  Gypsum
    Ca[SO
     
    4
    		] · 2H
     
    2
    		O
    Reference: [Collection of Werner Radl.; Mineralogical Record (2009) 40:347-408]
  		•  Halite
    NaCl
    Reference: [Mitchell, R.H. (2000) "The July 2000 expedition to the natrocarbonatite volcano Oldoinyo Lengai. Newsletter of the Mineralogical Association of Canada, # 63 (Dec. 2000).]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 42; Min. Mag. 32, 10-25]
  		•  Hematite
    var: Martite
    Reference: [Min. Mag. 32, 10-25]
  		•  Hercynite
    var: Picotite
    (Fe,Mg)(Al,Cr)
     
    2
    		O
     
    4
    Reference: [ Journal of Petrology, September 2002, vol. 43, no. 9, pp. 1749-1777(29) ]
  		•  Heulandite-Ca
    (Ca,Na)
     
    2-3
    		Al
     
    3
    		(Al,Si)
     
    2
    		Si
     
    13
    		O
     
    36
    		·12H
     
    2
    		O
    Reference: [Mineralogical Record (2009) 40:347-408]
  		•  Högbomite
    (Mg,Fe)
     
    2
    		(Al,Ti)
     
    5
    		O
     
    10
    Reference: [www.min.uni-kiel.de/petrographie/schenk/projekte/tansania/mautia/dmg_mautia.pdf.]
  		•  Hollandite
    Ba(Mn
    4+
     
    		,Mn
    2+
     
    		)
     
    8
    		O
     
    16
    Reference: [www.min.uni-kiel.de/petrographie/schenk/projekte/tansania/mautia/dmg_mautia.pdf.]
  		•  'Hornblende'
    Reference: [Mineralogical Magazine 1963 33 : 635-645]
  		•  Ice
    H
     
    2
    		O
    Reference: [Science 18 October 2002: Vol. 298. no. 5593, pp. 548 - 549]
  		•  Ilmenite
    Fe
    2+
     
    		TiO
     
    3
    Reference: [J.B. Dawson, Journal of Petrology, 2002, V 43, N° 9, pp. 1749-1777.]
  		•  IMA2008-049 (TL)
    (Ca,Na)
     
    2
    		(Al,Mg,Fe
    2+
     
    		)(Si
     
    2
    		O
     
    7
    		)
    Type Locality: Mt. Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania
    Reference: [IMA website - Dec.2008 approvals]
  		•  IMA2009-029 (TL)
    Ca
     
    3
    		Zr
     
    2
    		(Fe
    3+
    2
    		Si)O
     
    12
    Type Locality: Kerimasi volcano, Arusha Region, Tanzania
    Reference: [IMA New Minerals July 2009; http://geo.web.ru/conf/alkaline/2009/Zaitsev2.htm]
  		•  Kaolinite
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 42]
  		•  Karelianite
    V
     
    2
    		O
     
    3
    Reference: [Can. Mineral. 46 (2008) 1183-1194; Mineralogical Record (2009) 40:347-408]
  		•  Kasolite
    Pb(UO
     
    2
    		)[SiO
     
    4
    		] · H
     
    2
    		O
    Reference: []
  		•  'K Feldspar'
    Reference: [Mineralogical Magazine 1964 33 : 1057-1065.]
  		•  Kornerupine
    Mg
     
    3
    		Al
     
    6
    		(Si,Al,B)
     
    5
    		O
     
    21
    		(OH)
    Colour: pink
    Description: Pink nodular aggregate to 1o ml in volume
    Reference: [McKie, D. (1965): The magnesium aluminium borosilicates: kornerupine and grandidierite. Mineralogical Magazine 34: 346-357; Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
    Site Photo
    Lelatema Mts, Arusha Region, Tanzania
    © J.J. Evans
  		•  Kyanite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Reference: [Am Min 67:76-84; Mineralogical Magazine 1963 33 : 635-645; Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
    Site Photo
    Sangulungulu Hill, Naan village, Loliondo, Ngorongoro district, Arusha region, Tanzania
    © J.Ralph 2008
  		•  Lamprophyllite
    (Sr,K,Ba)
     
    2
    		(Na,Ti,Mn
    2+
     
    		,Fe
    3+
     
    		)
     
    4
    		Ti
     
    2
    		[O|(O,OH,F)|Si
     
    2
    		O
     
    7
    		]
     
    2
    Reference: [www.koeln.netsurf.de/~w.steffens/other.htm]
  		•  Laumontite
    CaAl
     
    2
    		Si
     
    4
    		O
     
    12
    		·4H
     
    2
    		O
    Habit: blocky
    Colour: white
    Description: associated with excellent gemmy green diopside and well-formed graphite crystals in an open pocket in December 2007
    Reference: [John A. Jaszczak by Raman spectroscopy and SEM-EDS]
  		•  Leucite
    KAlSi
     
    2
    		O
     
    6
    Reference: [Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols]
  		•  Liddicoatite
    [Ca][Li
     
    2
    		Al][Al
     
    6
    		][(OH)
     
    3
    		|F|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [Giller BS (2003) An overview of tourmaline mineralogy from gem tourmaline producing pegmatite districts in Africa. Master of Science Thesis, University of New Orleans, LA.]
  		•  Limonite
    FeO(OH)·nH
     
    2
    		O
    Reference: [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 42; Min. Mag. 32, 10-25]
  		•  Magnesiohögbomite-2N3S (TL)
    (Mg,Fe,Zn,Ti)
     
    3
    		(Al,Fe)
     
    10
    		O
     
    19
    		(OH)
    Type Locality: Mautia Hill, Kongwa, Dodoma Region, Tanzania
    Reference: [T. Armbruster (2002) Eur. Journ. Mineralogy 14, 389-395]
  		•  Magnesiohögbomite-6N6S (TL)
    (Mg,Al,Fe)
     
    2
    		(Al,Ti)
     
    8
    		O
     
    15
    		(OH)
    Type Locality: Liganga, Lake Malawi, Ludewa District, Iringa Region, Tanzania
    Reference: [American Mineralogist, Volume 87, pages 277–292, 2002]
  		•  Magnesiohornblende
    ☐[Ca
     
    2
    		][Mg
     
    4
    		Al][(OH)
     
    2
    		|AlSi
     
    7
    		O
     
    22
    		]
    Reference: [www.min.uni-kiel.de/petrographie/schenk/projekte/tansania/mautia/dmg_mautia.pdf.]
  		•  Magnesite
    MgCO
     
    3
    Reference: [Mining Annual Review(1985):441.]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Min. Mag. 32, 10-25]
  		•  Magnetite
    var: Titaniferous Magnetite
    Fe
    2+
     
    		(Fe
    3+
     
    		,Ti)
     
    2
    		O
     
    4
    Reference: []
  		•  Marialite
    Na
     
    4
    		[Cl|(AlSi
     
    3
    		O
     
    8
    		)
     
    3
    		]
    Reference: [Harvard Museum of Natural History specimen no. 124903]
    Site Photo
    Mpapwa (Mpwampwa) District, Dodoma Region, Tanzania
    © Martins da Pedra
  		•  Melilite
    (Ca,Na)
     
    2
    		(Al,Mg,Fe
    2+
     
    		)[(Al,Si)SiO
     
    7
    		]
    Reference: []
  		•  Mesolite
    Na
     
    2
    		Ca
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    3
    		 · 8H
     
    2
    		O
    Habit: acicular
    Colour: white
    Description: associated with excellent gemmy green diopside and well-formed graphite crystals in an open pocket in December 2007
    Reference: [John A. Jaszczak by Raman spectroscopy and SEM-EDS]
  		•  Metatorbernite
    Cu(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    Reference: []
  		•  'Mica Group'
    Reference: [Werner Radl collection]
  		•  Microcline
    var: Sunstone
    Description: Opaque gold-brown to black. When cut into cabochons, it produces either stars or cat's-eyes. http://www.tucsonshowguide.com/stories/mar04/tucson.cfm
    Reference: [Gems and gemology (2003), Volume 39, Issue 3]
  		•  Monazite-(La)
    (La,Ce,Nd)PO
     
    4
    Description: 10 wt% ThO2, 25 wt% LaO. Inclusions in forsterite. In harzburgite.
    Reference: [R.L. Rudnick et al. , Earth and Planetary Science Letters, 114, 1993, pp. 463-475.]
  		•  Monticellite
    CaMg[SiO
     
    4
    		]
    Description: Manganoan variety.
    Reference: [Mitchell, R.H. and Belton, F. (2004) Niocalite-cuspidine solid solution and manganoan monticellite from natrocarbonatite, Oldoinyo Lengai, Tanzania. Mineralogical Magazine: 68: 787-799.]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Journal of African Earth Sciences ]
  		•  Muscovite
    var: Fuchsite
    K(Al,Cr)
     
    3
    		Si
     
    3
    		O
     
    10
    		(OH)
     
    2
    Reference: [Mineralogical Record (2009) 40:347-408]
  		•  Natrolite
    Na
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 2H
     
    2
    		O
    Reference: [Tschernich, 1992. Zeolites of the World]
  		•  Neighborite
    NaMgF
     
    3
    Reference: [Mitchell, R.H. (1997) Carbonate-carbonate immiscibility, neighborite and potassium iron sulphide in Oldoinyo Lengai natrocarbonatite. Mineralogical Magazine: 61: 779-789.]
  		•  Nepheline
    (Na,K)[AlSiO
     
    4
    		]
    Reference: [www.koeln.netsurf.de/~w.steffens/other.htm]
  		•  Niocalite
    (Ca,Nb)
     
    4
    		[(O,OH,F)
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    Description: Occurs in a solid solution with cuspidine.
    Reference: [Mitchell, R.H. and Belton, F. (2004) Niocalite-cuspidine solid solution and manganoan monticellite from natrocarbonatite, Oldoinyo Lengai, Tanzania. Mineralogical Magazine: 68: 787-799.]
  		•  Nyerereite (TL)
    Na
     
    2
    		Ca(CO
     
    3
    		)
     
    2
    Type Locality: Mt. Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania
    Description: Carbonatite lava, 1963 flow.
    Reference: [Geol.Soc.Amer.,Progr. Annual. Meet.(1968) 202; Mineralogical Magazine 1997 61 : 779-789]
    Site Photo
    Mt. Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania
    © Knut Eldjarn
  		•  'Olivine'
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    4
    		]
    Reference: [Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ]
  		•  Opal
    SiO
     
    2
    		·nH
     
    2
    		O
    Reference: []
    Site Photo
    Kigoma Region, Tanzania
    © JSS
  		•  Orthoclase
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Min. Mag. 32, 10-25]
  		•  'Orthopyroxene Subgroup'
    Description: In spinel harzburgite.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  Perovskite
    CaTiO
     
    3
    Reference: [www.koeln.netsurf.de/~w.steffens/other.htm]
  		•  Phenakite
    Be
     
    2
    		[SiO
     
    4
    		]
    Reference: [Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ]
  		•  Phlogopite
    KMg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Can. Mineral. 46 (2008) 1183-1194; Mineralogical Record (2009) 40:347-408]
  		•  Phlogopite
    var: Chromian Phlogopite
    Description: Ti-rich chromian phlogopite.
    Reference: [J.B. Dawson, Journal of Petrology, 2002, V 43, N° 9, pp. 1749-1777.]
  		•  Piemontite
    {Ca
     
    2
    		}{Al
     
    2
    		Mn
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [www.min.uni-kiel.de/petrographie/schenk/projekte/tansania/mautia/dmg_mautia.pdf.]
  		•  Prehnite
    Ca
     
    2
    		Al
     
    2
    		Si
     
    3
    		O
     
    12
    		(OH)
    Reference: [Mineralogical Record (2009) 40:347-408]
    Site Photo
    Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
    © JSS
  		•  Pseudobrookite
    Fe
     
    2
    		TiO
     
    5
    Reference: [Mineralogical Magazine 1963 33 : 635-645]
  		•  Pyrite
    FeS
     
    2
    Reference: [Can. Mineral. 46 (2008) 1183-1194; Mineralogical Record (2009) 40:347-408]
    Site Photo
    Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
    © John A. Jaszczak
  		•  Pyrochlore
    (Ca,Na)
     
    2
    		Nb
     
    2
    		O
     
    6
    		(OH,F)
    Reference: [No reference listed]
  		•  'Pyroxene Group'
    Reference: [Journal of African Earth Sciences ]
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Reference: [Can. Mineral. 46 (2008) 1183-1194; Mineralogical Record (2009) 40:347-408]
  		•  Quartz
    SiO
     
    2
    Reference: [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 42; Min. Mag. 32, 10-25; Min. Mag. 32, 10-25]
  		•  Quartz
    var: Smoky Quartz
    SiO
     
    2
    Reference: [Werner Radl collection]
  		•  Rossmanite
    [ ][LiAl
     
    2
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [Giller BS (2003) An overview of tourmaline mineralogy from gem tourmaline producing pegmatite districts in Africa. Master of Science Thesis, University of New Orleans, LA.]
  		•  Rutherfordine (TL)
    (UO
     
    2
    		)[CO
     
    3
    		]
    Type Locality: Morogoro, Uluguru Mts (Uruguru Mts), Morogoro Region, Tanzania
    Description: Replaces uraninite cubes (size : up to 3 centimeters).
    Reference: [Centr.Min.(1906) p. 761-764; J. Geffroy, J.A. Sarcia, J. Chervet : "Les Minéraux Uranifères Français", 1960, Institut National des Sciences et Techniques Nucléaires / Saclay - PUF.]
    Site Photo
    Uluguru Mts (Uruguru Mts), Morogoro Region, Tanzania
    © Rob Lavinsky
  		•  Rutile
    TiO
     
    2
    Reference: [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 42; Min. Mag. 32, 10-25; Min. Mag. 32, 10-25]
  		•  Sapphirine
    (Mg,Fe)
     
    4-x
    		Al
     
    4+x
    		[Al
     
    4+x
    		Si
     
    2-x
    		O
     
    18
    		]O
     
    2
    Colour: Yellow
    Reference: [www.min.uni-kiel.de/petrographie/schenk/projekte/tansania/mautia/dmg_mautia.pdf.; Mineralogical Magazine 1963 33 : 635-645]
  		•  'Scapolite'
    Reference: [www.thamesvalleyminerals.com]; Mineralogical Record (2009) 40:347-408]
    Site Photo
    Tanzania
    © Pécsi Tivadar 2007
  		•  Scheelite
    Ca[WO
     
    4
    		]
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  Scolecite
    Ca[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 3H
     
    2
    		O
    Reference: [Collection of Werner Radl.]
  		•  Sellaite
    MgF
     
    2
    Reference: [Mineralogical Magazine 1997 61 : 779-789]
  		•  Serendibite
    (Ca,Na)
     
    2
    		(Mg,Fe
    2+
     
    		)
     
    3
    		(Al,Fe
    3+
     
    		)
     
    3
    		[O
     
    2
    		|(Si,Al,B)
     
    6
    		O
     
    18
    		]
    Reference: [Research Institute for African Geology, University of Leeds, 11th Annual Report, 40.]
  		•  'Sericite'
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  Siderite
    FeCO
     
    3
    Reference: [Mineralogical Record (2009) 40:347-408]
  		•  Sillimanite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Reference: [Tanz. J. Sci. Vol.29(2) 2003: 55-70; Mineralogical Record (2009) 40:347-408]
  		•  Sodalite
    Na
     
    8
    		[Cl
     
    2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		]
    Reference: [www.koeln.netsurf.de/~w.steffens/other.htm]
  		•  Spessartine
    Mn
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Lapis 33 (7-8), 7-8 (2008); Joseph Freilich collection ]
    Site Photo
    Tanzania
    © Oleg Lopatkin
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [Collection of Werner Radl.; Mineralogical Record (2009) 40:347-408]
  		•  Spinel
    MgAl
     
    2
    		O
     
    4
    Reference: [www.koeln.netsurf.de/~w.steffens/other.htm]
    Site Photo
    Tanzania
    © J. Wingard
  		•  Stibnite
    Sb
     
    2
    		S
     
    3
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  'Stilbite'
    Reference: [Collection of Werner Radl.]
  		•  Sylvite
    KCl
    Reference: [Mitchell, R.H. (2000) "The July 2000 expedition to the natrocarbonatite volcano Oldoinyo Lengai. Newsletter of the Mineralogical Association of Canada, # 63 (Dec. 2000).; Mineralogical Magazine 1997 61 : 779-789]
  		•  Talc
    Mg
     
    3
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    Reference: [Am Min 67:76-84; Mineralogical Magazine 1963 33 : 635-645; Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
  		•  Taramite
    var: Mboziite
    [(Na,K)][CaNa][Fe
    2+
    3
    		AlFe
    3+
     
    		[(OH)
     
    2
    		|Al
     
    2
    		Si
     
    6
    		O
     
    22
    		]
    Reference: [Mineralogical Magazine 1964 33 : 1057-1065.]
  		•  Tetradymite
    Bi
     
    2
    		Te
     
    2
    		S
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  Tilleyite ?
    Ca
     
    5
    		[(CO
     
    3
    		)
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Mineralogical Magazine 1997 61 : 779-789]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: [Min. Mag. 32, 10-25]
  		•  'Tourmaline'
    AD
     
    3
    		G
     
    6
    		(BO
     
    3
    		)
     
    3
    		[T
     
    6
    		O
     
    18
    		]Y
     
    3
    		Z
    Reference: [Min. Mag. 32, 10-25]
  		•  Tremolite
    ☐[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [Collection of Werner Radl.; Mineralogical Record (2009) 40:347-408]
    Site Photo
    Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
    © Dan & Diana Weinrich Minerals
  		•  Trona
    Na
     
    3
    		H(CO
     
    3
    		)
     
    2
    		·2H
     
    2
    		O
    Reference: [www.koeln.netsurf.de/~w.steffens/other.htm]
    Site Photo
    Lake Natron, Arusha Region, Tanzania
    © Tony Peterson
  		•  Tschermakite
    ☐[Ca
     
    2
    		][Mg
     
    3
    		Fe
    3+
     
    		Al][(OH)
     
    2
    		|Al
     
    2
    		Si
     
    6
    		O
     
    22
    		]
    Reference: []
    Site Photo
    Mundarara Mine, Longido, Mt Kilimanjaro, Kilimanjaro Region, Tanzania
    © John Sobolewski
  		•  Ullmannite
    NiSbS
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  Uraninite
    UO
     
    2
    Reference: [J. Geffroy, J.A. Sarcia, J. Chervet : "Les Minéraux Uranifères Français", 1960, Institut National des Sciences et Techniques Nucléaires / Saclay - PUF.]
    Site Photo
    Uluguru Mts (Uruguru Mts), Morogoro Region, Tanzania
    © Rob Lavinsky
  		•  Uranophane
    Ca(UO
     
    2
    		)
     
    2
    		[HSiO
     
    4
    		]
     
    2
    		 · 5H
     
    2
    		O
    Reference: [J. Geffroy, J.A. Sarcia, J. Chervet : "Les Minéraux Uranifères Français", 1960, Institut National des Sciences et Techniques Nucléaires / Saclay - PUF.]
  		•  Vandendriesscheite
    PbU
     
    7
    		O
     
    22
    		·12H
     
    2
    		O
    Reference: []
  		•  Vivianite
    Fe
    2+
    3
    		(PO
     
    4
    		)
     
    2
    		·8H
     
    2
    		O
    Reference: []
    Site Photo
    Tanzania
    © 2002 John H. Betts
  		•  Willyamite
    (Co,Ni)SbS
    Reference: [Vos, I.M.A. et al. (2009): The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita 44, 751-764.]
  		•  Wollastonite
    Ca[SiO
     
    3
    		]
    Reference: [www.koeln.netsurf.de/~w.steffens/other.htm]
    Site Photo
    Mt. Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania
    © Tony Peterson
  		•  Yoderite (TL)
    Mg(Al,Fe
    3+
     
    		)
     
    3
    		[O|OH|(SiO
     
    4
    		)
     
    2
    		]
    Type Locality: Mautia Hill, Kongwa, Dodoma Region, Tanzania
    Reference: [American Mineralogist 45, pp. 753 (1960); American Mineralogist 76, pp. 1052-1060 (1991); Mineralogical Magazine 1963 33 : 635-645]
    Site Photo
    Mautia Hill, Kongwa, Dodoma Region, Tanzania
    © Maurice de Graaf
  		•  Zeolite Group
    Reference: [J.B. Dawson, Journal of Petrology, 2002, V 43, N° 9, pp. 1749-1777.]
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Reference: [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 42; Min. Mag. 32, 10-25; Min. Mag. 32, 10-25]
    Site Photo
    Tanzania
    © Joseph A. Freilich, LLC
  		•  Zoisite
    {Ca
     
    2
    		}{Al
     
    3
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Colour: Green
    Reference: [Barot, N.R. and Boehm, E.W. (1992) Gem Quality Green Zoisite, Gems & Gemology: Spring 1992: 28(1).; Mineralogical Record (2009) 40:347-408]
    Site Photo
    Mundarara Mine, Longido, Mt Kilimanjaro, Kilimanjaro Region, Tanzania
    © Antonio Borrelli
  		•  Zoisite
    var: Tanzanite
    Reference: [No reference listed]
    Site Photo
    Tanzania
    © Oleg Lopatkin


    172 entries listed. 124 valid minerals. 10 type localities (valid minerals).

    Localities in this Region:
    Tanzania
     
      • Loliondo
        • Loliondo
          • Naan village
      • Pugu Hills
      • Uluguru Mts (Uruguru Mts)
      • Kongwa
        • Lake Malawi
      • Lashaine volcano
      • Olmani Cinder Cone (Olmani Hill)
        • Mbeya
      • Lake Victoria Goldfield
        • Kahama
        • Nzega District

    The above list 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!
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 30th Nov 2009 07:58:59