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

Mangabal I intrusion, Sanclerlândia, Goiás, Central-West Region, Brazil

StandardDetailedBy ChemistrySearch Google

Semi-circular mafic-ultramafic intrusion with an outcrop area of 7 km2, consisting of a basal ultramafic layer of feldspathic metaperidotite, a central olivine metagabbronorite and an upper metagabbronorite unit.
Located SE of Sanclerlândia.

Ref.:
- Candia, M.A.F., and Gaspar, J.C. (1997): Chromian spinels in metamorphosed ultramafic rocks from Mangabal I and II complexes, Goiás, Brazil. Mineralogy and Petrology 60, 27-40.





Mineral List:
  		•  Albite
    var: Andesine
    (Na,Ca)[Al(Si,Al)Si
     
    2
    		O
     
    8
    		]
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  'Albite-Anorthite Series'
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  Anthophyllite
    ☐[Mg
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  Clinochlore
    (Mg,Fe
    2+
     
    		)
     
    5
    		Al[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  'Clinopyroxene Subgroup'
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  Enstatite
    var: Bronzite
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    3
    		]
     
    2
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  Gedrite
    ☐[Mg
     
    2
    		][Mg
     
    3
    		Al
     
    2
    		][(OH)
     
    2
    		|Al
     
    2
    		Si
     
    6
    		O
     
    22
    		]
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  Magnesiohornblende
    ☐[Ca
     
    2
    		][Mg
     
    4
    		Al][(OH)
     
    2
    		|AlSi
     
    7
    		O
     
    22
    		]
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  'Olivine'
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    4
    		]
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  'Orthopyroxene Subgroup'
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  Quartz
    SiO
     
    2
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]
  		•  Spinel
    var: Chromspinel
    Mg(Al,Cr
    3+
     
    		)
     
    2
    		O
     
    4
    Reference: [Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.]


    13 entries listed. 6 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: 14th Nov 2009 12:15:06