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Pomba pit, Serra das Éguas, Brumado (Bom Jesus dos Meiras), Bahia, Brazili
Regional Level Types
Pomba pitPit
Serra das Éguas- not defined -
Brumado (Bom Jesus dos Meiras)- not defined -
Bahia- not defined -
BrazilCountry

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Key
Lock Map
Quartz & Magnesite pocket in the Pomba pit.

Pomba pit, Serra das Éguas, Brumado, Bahia, Brazil
Pure transparent thin sheets of talc in the Pomba pit at Brumado 1988

Pomba pit, Serra das Éguas, Brumado, Bahia, Brazil
Collecting in the Pomba pit at Brumado 1988

Pomba pit, Serra das Éguas, Brumado, Bahia, Brazil
Quartz & Magnesite pocket in the Pomba pit.

Pomba pit, Serra das Éguas, Brumado, Bahia, Brazil
Pure transparent thin sheets of talc in the Pomba pit at Brumado 1988

Pomba pit, Serra das Éguas, Brumado, Bahia, Brazil
Collecting in the Pomba pit at Brumado 1988

Pomba pit, Serra das Éguas, Brumado, Bahia, Brazil
Quartz & Magnesite pocket in the Pomba pit.

Pomba pit, Serra das Éguas, Brumado, Bahia, Brazil
Pure transparent thin sheets of talc in the Pomba pit at Brumado 1988

Pomba pit, Serra das Éguas, Brumado, Bahia, Brazil
Latitude & Longitude (WGS84): 14° 9' 26'' South , 41° 41' 55'' West
Latitude & Longitude (decimal): -14.15722,-41.69861
GeoHash:G#: 7j6r7ngbp
Locality type:Pit
Köppen climate type:BSh : Hot semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Brumado41,989 (2012)6.3km
Santana12,628 (2018)36.1km


The Serra das Éguas district is also known in the literature as the Brumado district (Cassedanne & Cassedanne 1978). It is a large hilly area (approx. 5 x 15 km2) with several magnesite (& talc) pits around Brumado. One of the world's largest magnesite deposits is located in this district.

The Pomba pit is above the Pedra Preta open pit mine further up the hill/mountain (Rock Currier information, based in 1988 field trip).

Regions containing this locality

South America PlateTectonic Plate
South AmericaContinent

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


25 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Agardite'
Anatase
Formula: TiO2
Beryl
Formula: Be3Al2(Si6O18)
Beryl var: Emerald
Formula: Be3Al2(Si6O18)
Chernovite-(Y)
Formula: Y(AsO4)
Dolomite
Formula: CaMg(CO3)2
Dravite
Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Florencite-(Ce)
Formula: CeAl3(PO4)2(OH)6
Florencite-(La)
Formula: LaAl3(PO4)2(OH)6
Fluor-uvite
Formula: Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
Goethite
Formula: α-Fe3+O(OH)
Hematite
Formula: Fe2O3
Kyanite
Formula: Al2(SiO4)O
Magnesite
Formula: MgCO3
Malachite
Formula: Cu2(CO3)(OH)2
'Monazite'
Nováčekite-I
Formula: Mg(UO2)2(AsO4)2 · 12H2O
Petalite
Formula: LiAl(Si4O10)
Quartz
Formula: SiO2
Svanbergite
Formula: SrAl3(PO4)(SO4)(OH)6
Talc
Formula: Mg3Si4O10(OH)2
Thorutite
Formula: (Th,U,Ca)Ti2(O,OH)6
Topaz
Formula: Al2(SiO4)(F,OH)2
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
'Uvite Series' ?
Formula: Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Woodhouseite
Formula: CaAl3(PO4)(SO4)(OH)6
Zeunerite
Formula: Cu(UO2)2(AsO4)2 · 12H2O
Zircon
Formula: Zr(SiO4)
Zunyite
Formula: Al13Si5O20(OH,F)18Cl

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Anatase4.DD.05TiO2
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Thorutite4.DH.05(Th,U,Ca)Ti2(O,OH)6
Group 5 - Nitrates and Carbonates
Dolomite5.AB.10CaMg(CO3)2
Magnesite5.AB.05MgCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 8 - Phosphates, Arsenates and Vanadates
Chernovite-(Y)8.AD.35Y(AsO4)
Florencite-(Ce)8.BL.13CeAl3(PO4)2(OH)6
Florencite-(La)8.BL.13LaAl3(PO4)2(OH)6
Nováčekite-I8.EB.05Mg(UO2)2(AsO4)2 · 12H2O
Svanbergite8.BL.05SrAl3(PO4)(SO4)(OH)6
Woodhouseite8.BL.05CaAl3(PO4)(SO4)(OH)6
Zeunerite8.EB.05Cu(UO2)2(AsO4)2 · 12H2O
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
var: Emerald9.CJ.05Be3Al2(Si6O18)
Dravite9.CK.05Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Fluor-uvite9.CK.05Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
Kyanite9.AF.15Al2(SiO4)O
Petalite9.EF.05LiAl(Si4O10)
Talc9.EC.05Mg3Si4O10(OH)2
Topaz9.AF.35Al2(SiO4)(F,OH)2
'Uvite Series' ?9..Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Zircon9.AD.30Zr(SiO4)
Zunyite9.BJ.55Al13Si5O20(OH,F)18Cl
Unclassified Minerals, Rocks, etc.
'Agardite'-
'Monazite'-
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Anatase4.4.4.1TiO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
AB2O6
Thorutite8.3.4.2(Th,U,Ca)Ti2(O,OH)6
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Magnesite14.1.1.2MgCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
AXO4
Chernovite-(Y)38.4.11.2Y(AsO4)
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Nováčekite-I40.2a.10.1Mg(UO2)2(AsO4)2 · 12H2O
Zeunerite40.2a.14.1Cu(UO2)2(AsO4)2 · 12H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Florencite-(Ce)41.5.10.2CeAl3(PO4)2(OH)6
Florencite-(La)41.5.10.3LaAl3(PO4)2(OH)6
Group 43 - COMPOUND PHOSPHATES, ETC.
Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Svanbergite43.4.1.6SrAl3(PO4)(SO4)(OH)6
Woodhouseite43.4.1.8CaAl3(PO4)(SO4)(OH)6
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Kyanite52.2.2c.1Al2(SiO4)O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Group 57 - SOROSILICATES Si3O10 Groups and Larger Noncyclic Groups
Insular Si3O10 and Larger Noncyclic Groups with [Si5O16] groups
Zunyite57.3.1.1Al13Si5O20(OH,F)18Cl
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Dravite61.3.1.9Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Fluor-uvite61.3.1.3Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
'Uvite Series' ?61.3.1.3Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Talc71.2.1.3Mg3Si4O10(OH)2
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with tetrahedral Al cross-linking
Petalite72.6.1.1LiAl(Si4O10)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Agardite'-
Beryl
var: Emerald
-Be3Al2(Si6O18)
'Monazite'-
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Nováčekite-IMg(UO2)2(AsO4)2 · 12H2O
H TalcMg3Si4O10(OH)2
H ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
H Florencite-(Ce)CeAl3(PO4)2(OH)6
H Thorutite(Th,U,Ca)Ti2(O,OH)6
H Florencite-(La)LaAl3(PO4)2(OH)6
H Goethiteα-Fe3+O(OH)
H MalachiteCu2(CO3)(OH)2
H WoodhouseiteCaAl3(PO4)(SO4)(OH)6
H SvanbergiteSrAl3(PO4)(SO4)(OH)6
H DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
H TopazAl2(SiO4)(F,OH)2
H ZunyiteAl13Si5O20(OH,F)18Cl
H Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
LiLithium
Li PetaliteLiAl(Si4O10)
BeBeryllium
Be Beryl (var: Emerald)Be3Al2(Si6O18)
Be BerylBe3Al2(Si6O18)
BBoron
B DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
B Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
CCarbon
C MagnesiteMgCO3
C DolomiteCaMg(CO3)2
C MalachiteCu2(CO3)(OH)2
OOxygen
O MagnesiteMgCO3
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O Chernovite-(Y)Y(AsO4)
O HematiteFe2O3
O Nováčekite-IMg(UO2)2(AsO4)2 · 12H2O
O TalcMg3Si4O10(OH)2
O ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
O ZirconZr(SiO4)
O Beryl (var: Emerald)Be3Al2(Si6O18)
O Florencite-(Ce)CeAl3(PO4)2(OH)6
O Thorutite(Th,U,Ca)Ti2(O,OH)6
O QuartzSiO2
O DolomiteCaMg(CO3)2
O Florencite-(La)LaAl3(PO4)2(OH)6
O Goethiteα-Fe3+O(OH)
O MalachiteCu2(CO3)(OH)2
O WoodhouseiteCaAl3(PO4)(SO4)(OH)6
O SvanbergiteSrAl3(PO4)(SO4)(OH)6
O DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
O TopazAl2(SiO4)(F,OH)2
O ZunyiteAl13Si5O20(OH,F)18Cl
O AnataseTiO2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O KyaniteAl2(SiO4)O
O PetaliteLiAl(Si4O10)
O BerylBe3Al2(Si6O18)
O Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
FFluorine
F TopazAl2(SiO4)(F,OH)2
F ZunyiteAl13Si5O20(OH,F)18Cl
F Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
NaSodium
Na DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mg MagnesiteMgCO3
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg Nováčekite-IMg(UO2)2(AsO4)2 · 12H2O
Mg TalcMg3Si4O10(OH)2
Mg DolomiteCaMg(CO3)2
Mg DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Mg Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
AlAluminium
Al Beryl (var: Emerald)Be3Al2(Si6O18)
Al Florencite-(Ce)CeAl3(PO4)2(OH)6
Al Florencite-(La)LaAl3(PO4)2(OH)6
Al WoodhouseiteCaAl3(PO4)(SO4)(OH)6
Al SvanbergiteSrAl3(PO4)(SO4)(OH)6
Al DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Al TopazAl2(SiO4)(F,OH)2
Al ZunyiteAl13Si5O20(OH,F)18Cl
Al KyaniteAl2(SiO4)O
Al PetaliteLiAl(Si4O10)
Al BerylBe3Al2(Si6O18)
Al Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
SiSilicon
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si TalcMg3Si4O10(OH)2
Si ZirconZr(SiO4)
Si Beryl (var: Emerald)Be3Al2(Si6O18)
Si QuartzSiO2
Si DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Si TopazAl2(SiO4)(F,OH)2
Si ZunyiteAl13Si5O20(OH,F)18Cl
Si KyaniteAl2(SiO4)O
Si PetaliteLiAl(Si4O10)
Si BerylBe3Al2(Si6O18)
Si Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
PPhosphorus
P Florencite-(Ce)CeAl3(PO4)2(OH)6
P Florencite-(La)LaAl3(PO4)2(OH)6
P WoodhouseiteCaAl3(PO4)(SO4)(OH)6
P SvanbergiteSrAl3(PO4)(SO4)(OH)6
SSulfur
S WoodhouseiteCaAl3(PO4)(SO4)(OH)6
S SvanbergiteSrAl3(PO4)(SO4)(OH)6
ClChlorine
Cl ZunyiteAl13Si5O20(OH,F)18Cl
CaCalcium
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca Thorutite(Th,U,Ca)Ti2(O,OH)6
Ca DolomiteCaMg(CO3)2
Ca WoodhouseiteCaAl3(PO4)(SO4)(OH)6
Ca Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
TiTitanium
Ti Thorutite(Th,U,Ca)Ti2(O,OH)6
Ti AnataseTiO2
FeIron
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe HematiteFe2O3
Fe Goethiteα-Fe3+O(OH)
CuCopper
Cu ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
Cu MalachiteCu2(CO3)(OH)2
AsArsenic
As Chernovite-(Y)Y(AsO4)
As Nováčekite-IMg(UO2)2(AsO4)2 · 12H2O
As ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
SrStrontium
Sr SvanbergiteSrAl3(PO4)(SO4)(OH)6
YYttrium
Y Chernovite-(Y)Y(AsO4)
ZrZirconium
Zr ZirconZr(SiO4)
LaLanthanum
La Florencite-(La)LaAl3(PO4)2(OH)6
CeCerium
Ce Florencite-(Ce)CeAl3(PO4)2(OH)6
ThThorium
Th Thorutite(Th,U,Ca)Ti2(O,OH)6
UUranium
U Nováčekite-IMg(UO2)2(AsO4)2 · 12H2O
U ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
U Thorutite(Th,U,Ca)Ti2(O,OH)6

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Archean
2500 - 4000 Ma



ID: 3186986
Archean crystalline metamorphic rocks

Age: Archean (2500 - 4000 Ma)

Lithology: Medium-high grade orthogneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 2291955
Brumado

Age: Archean (2500 - 3200 Ma)

Lithology: Metabasalt, marble, felsic metavolcanic, chert, metasedimentary, banded iron formation (BIF'S), Metakomatiíto, Formação Manganesífera

Reference: Geological Survey of Brazil. State Geological Maps of Brazil. CPRM - Geobank. [43]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Cassedanne, J.P. & Cassedanne, J.O. (1978): Famous mineral localities: The Brumado district, Bahia , Brazil. Mineralogical Record 9 : 196-205
- Mineralogical Record: 20(5): 394.
- week long collecting trip there during 1988 [Rock Currier]


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