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Campo Formoso ultramafic complex, Bahia, Brazil


The Campo Formoso stratiform intrusive complex is of Paleoproterozoic age and consists of a tabular body of ultramafic rocks about 40 km long and 100-1100 m wide. It hosts the most prominent chromite deposits of Brazil. At least seven chromitite layers, up to more than 10 m thick, have been discovered in the SW limb of the intrusion, and have been mined at several places.

References


- F. Zaccarini, G. Garuti and R.F. Martin (2006): Exotic accessory minerals in layered chromitites of the Campo Formoso complex (Brazil). Geologica Acta 4, 461-469. [http://www.geologica-acta.com/pdf/vol0404a04.pdf]

Mineral List

Mineral list contains entries from the region specified including sub-localities
Actinolite
'Albite-Anorthite Series'
'Allanite'
Antimony
'Apatite'
Beryl
var: Emerald

Biotite
Bismuthinite
Calcite
Chalcopyrite
'Chlorite Group'
Chromite
Chrysoberyl
var: Alexandrite

Chrysotile
Clinochlore
Dolomite
Dravite
Erlichmanite
Fluorite
Galena
Goethite
Hollingworthite
Irarsite
Kaolinite
'K Feldspar'
Laurite
Lepidocrocite
Lizardite
Magnesite
Margarite
Molybdenite
Monazite-(Ce)
Monazite-(La)
Muscovite
Nontronite
Opal
Osmium
Pentlandite
Phenakite
Phlogopite
Quartz
Rhodonite
Ruarsite
Rutile
Scheelite
Stichtite
Talc
'Tourmaline'
'Unnamed (Pb-Sb Alloy)'
Volkonskoite


56 entries listed. 40 valid minerals.

Localities in this Region

Brazil

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. 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. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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