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Nurali complex, Bashkortostan (Bashkiria) Republic, Southern Urals, Urals Region, Russia

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(Нурали)

Ref.:
- Garuti, G. and Zaccarini, F., Cabella, R., and Fershtater, G. (1997) Occurrence of unknown Ru-Os-Ir-Fe oxides in the chromitites of the Nurali ultramafic complex, southern Urals, Russia. Canadian Mineralogist: 35: 1431-1439.
- Zaccarini F., Pushkarev E.V., Fershtater G.B., Garuti G. (2004) Composition and mineralogy of PGE-rich chromitites in the Nurali lherzolite-gabbro complex, Southern Urals,Russia, - Can. Miner., v.42, p.2, pp. 545-562.
An ultramafic complex in the Southern Urals.

The Nurali lherzolite–gabbro complex, in the Southern Urals, consists of mantle tectonite overlain by an ultramafic layered sequence, passing upward to amphibole gabbro and diorite.
(Upper mantle – deep crust transition zone below a continental margin).

Bodies of chromitite in the Nurali lherzolite–gabbro complex.are small concordant lenses within layered wehrlite and clinopyroxenite, overlying the lherzolitic mantle tectonite.
The ultramafic layered sequence hosting the chromitites formed by multistage intrusion and fractionation of hydrous magmas above a dominantly lherzolitic mantle tectonite.

One lens occurs within the wehrlite – clinopyroxenite – dunite – gabbro
cumulus sequence, above the contact with the dunite unit.
The other lens of chromitite is located inside a large ultramafic block isolated in the serpentinite mélange. The chromitite body consists of the rhythmic repetition of massive seams interlayered with wehrlite and clinopyroxenite.





Mineral List:
  		•  Andradite
    Ca
     
    3
    		Fe
    3+
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Awaruite
    Ni
     
    3
    		Fe
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Chromite
    FeCr
     
    2
    		O
     
    4
    Reference: [AmMin 84:197]
  		•  Clinochlore
    var: Chromian Clinochlore
    Mg
     
    5
    		(Al,Cr)
     
    2
    		Si
     
    3
    		O
     
    10
    		(OH)
     
    8
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Cooperite
    (Pt,Pd,Ni)S
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Diopside
    CaMg[Si
     
    2
    		O
     
    6
    		]
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Erlichmanite
    OsS
     
    2
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Grossular
    Ca
     
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Heazlewoodite
    Ni
     
    3
    		S
     
    2
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Ilmenite
    Fe
    2+
     
    		TiO
     
    3
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Kashinite
    (Ir,Rh)
     
    2
    		S
     
    3
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Laurite
    RuS
     
    2
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Millerite
    NiS
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  'Orthopyroxene Subgroup'
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Pargasite
    [Na][Ca
     
    2
    		][Mg
     
    4
    		Al][(OH)
     
    2
    		|Al
     
    2
    		Si
     
    6
    		O
     
    22
    		]
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Pentlandite
    (Fe,Ni)
     
    9
    		S
     
    8
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Phlogopite
    KMg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Potarite
    PdHg
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Rutile
    TiO
     
    2
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  'Serpentine Group'
    D
     
    2
    		[Si
     
    2
    		O
     
    5
    		](OH)4 + or - nH
     
    2
    		O
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Spinel
    var: Chromspinel
    Mg(Al,Cr
    3+
     
    		)
     
    2
    		O
     
    4
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  'Unnamed (Pt-Fe alloy)'
    Pt
     
    2
    		Fe
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  'Unnamed (Pt-Pd Sulphide)'
    (Pt,Pd)
     
    3
    		S
     
    2
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  'Unnamed (Ru-Os-Ir-Fe oxides)'
    (Ru,Os,Ir,Fe,Ni,Cu)
     
    1-2
    		O
     
    2-3
    Reference: [AmMin 84:197]
  		•  Uvarovite
    Ca
     
    3
    		Cr
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]
  		•  Wairauite
    CoFe
    Reference: [F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).]


    30 entries listed. 23 valid minerals.

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