Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (6 online) Mindat Auctions

Labait volcano, Kilimanjaro Region, Tanzania

StandardDetailedBy ChemistrySearch Google

Located South of Mount Hanang.
Olivine melilite lava associated with carbonatites.
Fe-rich chromite wehrlite and Fe-rich dunite xenoliths.

Ref.:
C.T. Lee et al. (2000): Contrib. Mineral. Petrol., 139, 470-484.





Mineral List:
  		•  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.]
  		•  Calcite
    CaCO
     
    3
    Description: Early calcite (6 wt% MgO) in Fe-rich chromite wehrlite (crystalline cumulates from carbonatitic melts). In Fe-rich dunite. Late hydrothermal calcite.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  Chromite
    FeCr
     
    2
    		O
     
    4
    Description: In Fe-rich chromite wehrlite.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  'Clinopyroxene Subgroup'
    Description: Low Cr-clinopyroxene in olivine melilite lava. In Fe-rich chromite wehrlite.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  Forsterite
    Mg
     
    2
    		[SiO
     
    4
    		]
    Description: In olivine melilite lava. In peridotite xenoliths. In Fe-rich dunite.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  Magnetite
    var: Titaniferous Magnetite
    Fe
    2+
     
    		(Fe
    3+
     
    		,Ti)
     
    2
    		O
     
    4
    Description: In olivine melilite lava.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  Melilite
    (Ca,Na)
     
    2
    		(Al,Mg,Fe
    2+
     
    		)[(Al,Si)SiO
     
    7
    		]
    Description: In olivine melilite lava.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  Nepheline
    (Na,K)[AlSiO
     
    4
    		]
    Description: In olivine melilite lava. In Fe-rich chromite wehrlite.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  Perovskite
    CaTiO
     
    3
    Description: In olivine melilite lava.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  Phlogopite
    KMg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Description: In Fe-rich dunite.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  Rutile
    TiO
     
    2
    Description: In metasomatic veinlets cutting harzburgite xenoliths.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Description: In metasomatic veinlets cutting harzburgite xenoliths.
    Reference: [C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.]


    12 entries listed. 8 valid minerals.

    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!
    This page is currently not sponsored. Click here to find out how you can sponsor this page.

    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    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: 24th Nov 2009 05:10:30