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Bacuri complex, Vila Nova, Mazagão, Amapá, Brazili
Regional Level Types
Bacuri complexComplex
Vila NovaNova
MazagãoMunicipality
AmapáState
BrazilCountry

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Latitude & Longitude (WGS84):
0° 28' 59'' South , 51° 46' 0'' West
Latitude & Longitude (decimal):
-0.48333,-51.76667
GeoHash:
G#: 6zgjq008m
GRN:
S01W36
Type:
Complex
Köppen climate type:
Am : Tropical monsoon climate
Mindat Locality ID:
28923
Long-form identifier:
mindat:1:2:28923:9
GUID (UUID V4):
fa214743-79fb-492c-9bcb-0eca115a5a27


The southern branch contains a semi-continuous level with chromitite, which was intensely mined at shallow depths.

This branch has a thickness of about 950 m and was detailed and mined for about 13 km, from the limiting shear to Samacá, in the west.

It is formed by a basal 500 m thick leuco orthoamphibolite, an intermediate 30 to 150 m thick unit of serpentinized ultramafics, and a 300 m thick upper unit of mafic orthoamphibolites.

It is divided, or split, into ten isolated deposits: B7, B5, B3, B1, C1, C3, C5, C7, C9 and C11.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


17 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ 'Asbestos'
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ 'Chlorite Group'
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Chromite var. Berezovskite
Formula: (Fe,Mg)(Cr,Al)2O4
ⓘ Gersdorffite
Formula: NiAsS
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Irarsite
Formula: (Ir,Ru,Rh,Pt)AsS
ⓘ Laurite
Formula: RuS2
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Maucherite
Formula: Ni11As8
ⓘ Michenerite
Formula: PdBiTe
ⓘ Millerite
Formula: NiS
ⓘ Pentlandite
Formula: (NixFey)Σ9S8
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Pyrrhotite var. Nickel-bearing Pyrrhotite
Formula: (Fe,Ni)7S8
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Sobolevskite
Formula: PdBi
ⓘ Sperrylite
Formula: PtAs2
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘMaucherite2.AB.15Ni11As8
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘSobolevskite2.CC.05PdBi
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘvar. Nickel-bearing Pyrrhotite2.CC.10(Fe,Ni)7S8
ⓘMillerite2.CC.20NiS
ⓘLaurite2.EB.05aRuS2
ⓘPyrite2.EB.05aFeS2
ⓘSperrylite2.EB.05aPtAs2
ⓘGersdorffite2.EB.25NiAsS
ⓘMichenerite2.EB.25PdBiTe
ⓘIrarsite2.EB.25(Ir,Ru,Rh,Pt)AsS
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘvar. Berezovskite4.BB.05(Fe,Mg)(Cr,Al)2O4
ⓘIlmenite4.CB.05Fe2+TiO3
Group 9 - Silicates
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘTalc9.EC.05Mg3Si4O10(OH)2
Unclassified
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Chlorite Group'-
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Asbestos'-

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
OOxygen
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ Chromite var. Berezovskite(Fe,Mg)(Cr,Al)2O4
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
NaSodium
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mgⓘ Chromite var. Berezovskite(Fe,Mg)(Cr,Al)2O4
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Chromite var. Berezovskite(Fe,Mg)(Cr,Al)2O4
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
SSulfur
Sⓘ GersdorffiteNiAsS
Sⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Sⓘ LauriteRuS2
Sⓘ MilleriteNiS
Sⓘ Pentlandite(NixFey)Σ9S8
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ Pyrrhotite var. Nickel-bearing Pyrrhotite(Fe,Ni)7S8
ClChlorine
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ TitaniteCaTi(SiO4)O
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
Crⓘ Chromite var. Berezovskite(Fe,Mg)(Cr,Al)2O4
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Pentlandite(NixFey)Σ9S8
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Chromite var. Berezovskite(Fe,Mg)(Cr,Al)2O4
Feⓘ Pyrrhotite var. Nickel-bearing Pyrrhotite(Fe,Ni)7S8
NiNickel
Niⓘ GersdorffiteNiAsS
Niⓘ MaucheriteNi11As8
Niⓘ MilleriteNiS
Niⓘ Pentlandite(NixFey)Σ9S8
Niⓘ Pyrrhotite var. Nickel-bearing Pyrrhotite(Fe,Ni)7S8
AsArsenic
Asⓘ GersdorffiteNiAsS
Asⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Asⓘ MaucheriteNi11As8
Asⓘ SperrylitePtAs2
RuRuthenium
Ruⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ruⓘ LauriteRuS2
RhRhodium
Rhⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
PdPalladium
Pdⓘ MicheneritePdBiTe
Pdⓘ SobolevskitePdBi
TeTellurium
Teⓘ MicheneritePdBiTe
IrIridium
Irⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
PtPlatinum
Ptⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ptⓘ SperrylitePtAs2
BiBismuth
Biⓘ MicheneritePdBiTe
Biⓘ SobolevskitePdBi

Other Regions, Features and Areas containing this locality

South AmericaContinent
South America PlateTectonic Plate

This page 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 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.

References

Prichard, Hazel M., Sá, J. Haroldo S., Fisher, Peter C. (2001) Platinum-group mineral assemblages and chromite composition in the altered and deformed Bacuri Complex, Amapa, Northeastern Brazil. The Canadian Mineralogist: 39(2): 377-396. https://www.researchgate.net/publication/239922468_Platinum-group_mineral_assemblages_and_chromite_composition_in_the_altered_and_deformed_Bacuri_Complex_Amapa_Northeastern_Brazil
portergeo.com.au (n.d.) http://portergeo.com.au/database/mineinfo.asp?mineid=mn725
[1]Scarpelli, W., Horikava, E. H. (2018) Chromium, iron, gold and manganese in Amapá and northern Pará, Brazil. Brazilian Journal of Geology: 48(3): 415-433. https://www.scielo.br/j/bjgeo/a/4gJXnwJ8bG4db5xgwq739Cj/?lang=en
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