Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Kenticha mine, Kenticha pegmatite field, Sidamo-Borana Province, Ethiopia

StandardDetailedBy ChemistryMineral Photos (15)MapsSearch Google

Active tantalite mine in the Main Kenticha pegmatite sheet (thickness 40-100 m; exposed over 2 km). Annual production of about 120 tons of tantalum concentrate grading at 50-70% Ta2O5.
Mining is presently (Küster et al., 2009) restricted to the upper zone in the eastern and northern parts of the pegmatite.



References:
- Küster, D. (2009): Granitoid-hosted Ta mineralization in the Arabian-Nubian Shield: Ore deposit types, tectono-metallogenetic setting and petrogenetic framework. Ore Geology Reviews 35, 68-86.
- Küster, D. et al. (2009): Mineralium Deposita 44, 723-750.





 Map Reference: 5°31'N , 39°2'E

This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Group 2 - Sulphides and Sulfosalts
  		• Arsenopyrite2.EB.20
    FeAsS - (Fe
     
    0.90
    		Co
     
    0.10
    		)AsS
  		• Pyrite2.EB.05a
    FeS
     
    2
    Group 4 - Oxides and Hydroxides
  		• Cassiterite4.DB.05
    SnO
     
    2
  		• Columbite-(Fe)4.DB.35
    FeNb
     
    2
    		O
     
    6
  		• Columbite-(Mn)4.DB.35
    (Mn,Fe)(Nb,Ta)
     
    2
    		O
     
    6
  		• Ilmenite4.CB.05
    Fe
    2+
     
    		TiO
     
    3
  		• Ixiolite4.DB.25
    (Ta,Nb,Sn,Fe,Mn)
     
    4
    		O
     
    8
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Microlite4.DH.15
    (Ca,Na)
     
    2
    		Ta
     
    2
    		O
     
    6
    		(O,OH,F)
  		• Quartz4.DA.05
    SiO
     
    2
  		• Tantalite-(Mn)4.DB.35
    MnTa
     
    2
    		O
     
    6
  		• Wodginite4.DB.40
    Mn(Sn,Ta)Ta
     
    2
    		O
     
    8
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Amblygonite8.BB.05
    LiAl[(F,OH)|PO
     
    4
    		]
    Group 9 - Silicates
  		• Albite9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
  		• Beryl9.CJ.05
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
      var: Emerald9.CJ.05
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
  		• Holmquistite9.DD.05
    ☐[Li
     
    2
    		][Mg
     
    3
    		Al
     
    2
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
  		• Kaolinite9.ED.05
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
  		• Microcline9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
      var: Amazonite9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Muscovite9.EC.15
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Petalite ?9.EF.05
    LiAlSi
     
    4
    		O
     
    10
  		• Phlogopite9.EC.20
    KMg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Spodumene9.DA.30
    LiAl[Si
     
    2
    		O
     
    6
    		]
  		• Swinefordite9.EC.45
    Li(Al,Li,Mg)
     
    4
    		(Si,Al)
     
    8
    		O
     
    20
    		,(OH,F)
     
    4
    		·xH
     
    2
    		O
  		• Topaz9.AF.35
    Al
     
    2
    		[(F,OH)
     
    2
    		|SiO
     
    4
    		]
  		• Zircon9.AD.30
    Zr[SiO
     
    4
    		]
    Unclassified Minerals
  		• 'Apatite'-
  		• 'Garnet Group'-
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
  		• Lepidolite-
  		• 'Sericite'-
  		• 'Tourmaline'-
    AD
     
    3
    		G
     
    6
    		(BO
     
    3
    		)
     
    3
    		[T
     
    6
    		O
     
    18
    		]Y
     
    3
    		Z


    32 entries listed. 27 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: 22nd Nov 2009 07:42:56