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Barro Alto bauxite deposit, Barro Alto, Goiás, Brazili
Regional Level Types
Barro Alto bauxite depositDeposit
Barro AltoMunicipality
GoiásState
BrazilCountry

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Latitude & Longitude (WGS84):
15° 3' 37'' South , 49° 1' 8'' West
Latitude & Longitude (decimal):
-15.06039,-49.01900
GRN:
S11W34
Type:
Deposit
Köppen climate type:
Aw : Tropical savanna, wet
Nearest Settlements:
PlacePopulationDistance
Barro Alto7,633 (2012)14.9km
Goianésia47,883 (2012)30.5km
Mindat Locality ID:
265138
Long-form identifier:
mindat:1:2:265138:8
GUID (UUID V4):
0


Bauxite derived from anorthosite

The Barro Alto bauxite deposit records a polygenetic evolution in which classical lateritization is overprinted by fluid-assisted redistribution and biologically mediated processes. The profile develops from anorthosite through intense desilicification and formation of a porous gibbsitic framework, followed by aluminium remobilization and pore infilling that generate more massive facies.

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


13 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Anatase
Formula: TiO2
ⓘ Anorthite
Formula: Ca(Al2Si2O8)
ⓘ Anorthite var. Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
ⓘ Böhmite
Formula: AlO(OH)
ⓘ Corundum
Formula: Al2O3
Habit: cm sized crystals
ⓘ Diaspore
Formula: AlO(OH)
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Gibbsite
Formula: Al(OH)3
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Hematite
Formula: Fe2O3
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ Lepidocrocite
Formula: Fe3+O(OH)
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ 'Scapolite'
ⓘ Spinel
Formula: MgAl2O4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘCorundum4.CB.05Al2O3
ⓘHematite4.CB.05Fe2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘAnatase4.DD.05TiO2
ⓘDiaspore4.FD.10AlO(OH)
ⓘGibbsite4.FE.10Al(OH)3
ⓘBöhmite4.FE.15AlO(OH)
ⓘLepidocrocite4.FE.15Fe3+O(OH)
Group 9 - Silicates
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
ⓘvar. Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Unclassified
ⓘ'Scapolite'-
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hⓘ BöhmiteAlO(OH)
Hⓘ DiasporeAlO(OH)
Hⓘ GibbsiteAl(OH)3
Hⓘ GoethiteFe3+O(OH)
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ LepidocrociteFe3+O(OH)
OOxygen
Oⓘ AnataseTiO2
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ BöhmiteAlO(OH)
Oⓘ CorundumAl2O3
Oⓘ DiasporeAlO(OH)
Oⓘ GibbsiteAl(OH)3
Oⓘ GoethiteFe3+O(OH)
Oⓘ HematiteFe2O3
Oⓘ IlmeniteFe2+TiO3
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Oⓘ LepidocrociteFe3+O(OH)
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ SpinelMgAl2O4
Oⓘ Pyroxene GroupADSi2O6
Oⓘ Garnet GroupX3Z2(SiO4)3
NaSodium
Naⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
MgMagnesium
Mgⓘ SpinelMgAl2O4
AlAluminium
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ BöhmiteAlO(OH)
Alⓘ CorundumAl2O3
Alⓘ DiasporeAlO(OH)
Alⓘ GibbsiteAl(OH)3
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Alⓘ SpinelMgAl2O4
SiSilicon
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Garnet GroupX3Z2(SiO4)3
CaCalcium
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
TiTitanium
Tiⓘ AnataseTiO2
Tiⓘ IlmeniteFe2+TiO3
FeIron
Feⓘ GoethiteFe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ IlmeniteFe2+TiO3
Feⓘ LepidocrociteFe3+O(OH)
Feⓘ MagnetiteFe2+Fe23+O4

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

Santos, W. M. D. (2012). Mineralogia e geoquímica da bauxita derivada do anortosito, Barro Alto, Goiás. Dissertação(Mestrado em Geologia)—Universidade de Brasília, Brasília, 2011.
[1]de Oliveira, Saulo B. (2026) Relationship between bauxitization and regolith-hosted REE deposits: insights from Brazilian bauxites and Morro do Ferro deposit, Poços de Caldas alkaline complex. Ore Geology Reviews, 194. p.107371. doi:10.1016/j.oregeorev.2026.107371
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