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Buranga pegmatite, Gatumba District, Western Province, Rwanda

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Ref.: Bertossa (1965) La pegmatite de Buranga. Bull. Serv. Geol. Rwanda, 2: 1-5.

von Knorring (1969) A note on the phosphate mineralisation at the Buranga pegmatite, Rwanda. Bull. Serv. Geol. Rwanda, 5: 42-45.

Fransolet, A.-M. (1980) The Eosphorite-Childrenite Series Associated with the Li-Mn-Fe Phosphate Minerals from the Buranga Pegmatite, Rwanda. Mineralogical Magazine: 43: 1015-1023.

von Knorring, O. and Sahama, T. G. (1982): Some FeMn phosphates from the Buranga pegmatite, Rwanda. Schweizerische mineralogische und petrographische Mitteilungen, Frauenfeld: 62, 343-352.

Von Knorring, O., and E. Condliffe (1987) Mineralized pegmatites in Africa. Geological Journal: Volume 22, Issue S2: 253-270.

Fransolet, André-Mathieu; Knorring, Oleg von; Fontan, Francois
Nimeke (1992) A new occurrence of samuelsonite in the Buranga pegmatite, Rwanda. Bulletin of the Geological Society of Finland
Volume 64(1): 13-21.

Fransolet, Andre-Mathieu (1995) Wyllieite et rosemaryite dans la pegmatite de Buranga, Rwanda. European Journal of Mineralogy; June 1995; v. 7; no. 3; p. 567-575.

Daltry, V.D.C. and O. von Knorring (1998) Type-Mineralogy of Rwanda with Particular Reference to the Buranga Pegmatite. Geologica Belgica - Volume 1(1).

Cook, Robert B. (2000) Brazilianite. Rocks & Minerals: January 2000.





Mineral List:
  		•  Alluaudite
    (Na,Ca)Mn
    2+
     
    		(Fe
    3+
     
    		,Mn
    2+
     
    		,Fe
    2+
     
    		,Mg)
     
    2
    		(PO
     
    4
    		)
     
    3
    Reference: [Strübel, Zimmer: "Lexikon der Minerale", 2nd Ed., 1991]
    Site Photo
    Buranga pegmatite, Gatumba District, Western Province, Rwanda
    © Elmar Lackner
  		•  Amblygonite
    LiAl[(F,OH)|PO
     
    4
    		]
    Reference: [Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV; Mineralogical Magazine 1963 33 : 613-615]
  		•  'Apatite'
    Reference: [Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV; Mineralogical Magazine 1963 33 : 613-615]
  		•  Arrojadite-(KFe)
    {KNa}{Fe
    2+
     
    		[ ]}{Ca}{Na
     
    2
    		[ ]}{Fe
    2+
    13
    		}{Al}[(OH)
     
    2
    		|HPO
     
    4
    		|(PO
     
    4
    		)
     
    11
    		]
    Reference: [Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV]
  		•  Augelite
    Al
     
    2
    		[(OH)
     
    3
    		|PO
     
    4
    		]
    Reference: [Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Mineralogical Magazine 1963 33 : 613-615]
  		•  Barbosalite
    Fe
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    Reference: [Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV]
  		•  Berlinite
    Al[PO
     
    4
    		]
    Reference: [Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV; Mineralogical Magazine 1963 33 : 613-615]
    Site Photo
    Buranga pegmatite, Gatumba District, Western Province, Rwanda
    © Pavel M. Kartashov
  		•  Bermanite
    Mn
    2+
     
    		(H
     
    2
    		O)
     
    4
    		[Mn
    3+
    2
    		(OH)
     
    2
    		(PO
     
    4
    		)
     
    2
    		]
    Reference: [von Knorring, O. and Sahama, T. G. (1982): Some FeMn phosphates from the Buranga pegmatite, Rwanda. Schweiz. Mineral. Petrogr. Mitt. 62, 343-352; Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV]
  		•  Bertossaite (TL)
    (Li,Na)
     
    2
    		(Ca,Fe
    2+
     
    		,Mn
    2+
     
    		)Al
     
    4
    		[(OH,F)|PO
     
    4
    		]
     
    4
    Type Locality: Buranga pegmatite, Gatumba District, Western Province, Rwanda
    Reference: [Nickel & Nichols, 1991 - "Mineral Reference Manual", p21]
    Site Photo
    Buranga pegmatite, Gatumba District, Western Province, Rwanda
    © 2007, JGW
  		•  Bjarebyite
    (Ba,Sr)(Mn
    2+
     
    		,Fe
    2+
     
    		,Mg)
     
    2
    		Al
     
    2
    		[OH|PO
     
    4
    		]
     
    3
    Reference: [von Knorring, O. & Fransolet, A.-M. (1975): Schweiz. Min.Petr.Mitt., 55, 9-18.]
  		•  Brazilianite
    NaAl
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    Reference: [Cook, Robert B. (2000) Brazilianite. Rocks & Minerals: January 2000; Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV]
    Site Photo
    Buranga pegmatite, Gatumba District, Western Province, Rwanda
    © Pavel M. Kartashov
  		•  Burangaite (TL)
    (Na,Ca
     
    0.5
    		)(Fe
    2+
     
    		,Mg)Al
     
    5
    		[(OH,O)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 2H
     
    2
    		O
    Type Locality: Buranga pegmatite, Gatumba District, Western Province, Rwanda
    Reference: [Bul. Geol. Soc. Fin. 49 (1977), 33; HB4 (2000)]
    Site Photo
    Buranga pegmatite, Gatumba District, Western Province, Rwanda
    © Leon Hupperichs
  		•  Crandallite
    CaAl
     
    3
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    2
    		] · H
     
    2
    		O
    Reference: [Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV]
  		•  Fillowite
    {Mn
    2+
     
    		}{Na
     
    8
    		}{Ca
     
    4
    		Na
     
    4
    		}{(Mn
    2+
     
    		,Fe
    2+
     
    		)
     
    43
    		}[PO
     
    4
    		]
     
    36
    Reference: []
  		•  Gatumbaite (TL)
    CaAl
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · H
     
    2
    		O
    Type Locality: Buranga pegmatite, Gatumba District, Western Province, Rwanda
    Reference: [NJMM (1977), 561; HB4 (2000)]
  		•  Lacroixite
    NaAl[F|PO
     
    4
    		]
    Reference: [http://rruff.geo.arizona.edu/doclib/hom/lacroixite.pdf.]
  		•  Lazulite
    (Mg,Fe
    2+
     
    		)Al
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    Reference: [Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV; Mineralogical Magazine 1963 33 : 613-615]
  		•  Lithiophilite
    LiMn
    2+
     
    		[PO
     
    4
    		]
    Reference: []
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Mineralogical Magazine 1963 33 : 613-615]
  		•  Natromontebrasite
    Reference: [Mineralogical Magazine 1963 33 : 613-615]
  		•  Phosphosiderite
    FePO
     
    4
    		·2H
     
    2
    		O
    Reference: [Mineralogical Magazine 1963 33 : 613-615]
  		•  Purpurite
    (Mn
    3+
     
    		,Fe
    3+
     
    		)[PO
     
    4
    		]
    Reference: [Mineralogical Magazine 1963 33 : 613-615]
  		•  Quartz
    SiO
     
    2
    Reference: [Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV]
  		•  Rosemaryite
    (Na,Ca,Mn)(Mn,Fe
    2+
     
    		)(Fe
    3+
     
    		,Mg)Al(PO
     
    4
    		)
     
    3
    Reference: [Fransolet, A.M. (1995): Wyllieite and rosemaryite in the pegmatite of Buranga, Rwanda. European Journal of Mineralogy 7, 567-575. (in French)]
  		•  Samuelsonite
    (Ca,Ba)Ca
     
    8
    		Fe
    2+
    2
    		Mn
    2+
    2
    		Al
     
    2
    		[(OH)
     
    2
    		|(PO
     
    4
    		)
     
    10
    		]
    Reference: [Fransolet, A.M., von Knorring, O. & Fontan, F. (1992): A new occurrence of samuelsonite in the Buranga Pegmatite, Rwanda. Bulletin of the Geological Society of Finland 64, 13-21 ; Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV]
  		•  Scorzalite
    (Fe
    2+
     
    		,Mg)Al
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    Reference: [Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV]
  		•  Strengite
    FePO
     
    4
    		·2H
     
    2
    		O
    Reference: [von Knorring, O. and Sahama, T. G. (1982): Some FeMn phosphates from the Buranga pegmatite, Rwanda. Schweiz. Mineral. Petrogr. Mitt. 62, 343-352. ]
  		•  Triphylite
    LiFe
    2+
     
    		[PO
     
    4
    		]
    Reference: []
  		•  Trolleite
    Al
     
    4
    		[OH|PO
     
    4
    		]
     
    3
    Reference: [Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV]
  		•  Wyllieite
    (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO
     
    4
    		)
     
    3
    Reference: [Fransolet, A.M. (1995): Wyllieite and rosemaryite in the pegmatite of Buranga, Rwanda. European Journal of Mineralogy 7, 567-575. (in French)]


    30 entries listed. 28 valid minerals. 3 type localities (valid minerals).

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