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Carnaíba mining district, Pindobaçu, Bahia, Brazili
Regional Level Types
Carnaíba mining districtMining District
Pindobaçu- not defined -
Bahia- not defined -
BrazilCountry

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Carnaiba Emerald zone: side of formerly activity

Carnaíba mining district, Pindobaçu, Bahia, Brazil
Carnaiba Emerald zone: side of formerly activity

Carnaíba mining district, Pindobaçu, Bahia, Brazil
Carnaiba Emerald zone: side of formerly activity

Carnaíba mining district, Pindobaçu, Bahia, Brazil
Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 10° South , 40° West (est.)
Margin of Error:~1km
Locality type:Mining District
Köppen climate type:Aw : Tropical savanna, wet


The mica schists of Carnaíba, discovered in the 1960s, may contain the most extensive emerald deposits in the world. The largest cut emerald (86,136 carats) was found in Carnaíba in August 1974.

Regions containing this locality

South America PlateTectonic Plate
South AmericaContinent

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

20 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
'Albite-Anorthite Series'
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
'Apatite'
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Beryl
Formula: Be3Al2(Si6O18)
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Beryl var: Emerald
Formula: Be3Al2(Si6O18)
Reference: Giuliani, Gaston; Cheilletz, Alain; Zimmermann, Jean-Louis; Ribeiro-Althoff, Ana Maria; France-Lanord, Christian; Feraud, Gilbert (1997): Brazilian emerald deposits: genesis and topology. Chronique de la Recherche Minière, 65, 17-61.; Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Calcite
Formula: CaCO3
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Chalcopyrite
Formula: CuFeS2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
'Chlorite Group'
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Chromite
Formula: Fe2+Cr3+2O4
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Chrysoberyl
Formula: BeAl2O4
Chrysoberyl var: Alexandrite
Formula: BeAl2O4
Dolomite
Formula: CaMg(CO3)2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Fluorite
Formula: CaF2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Goethite
Formula: α-Fe3+O(OH)
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
'K Feldspar'
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Lepidocrocite
Formula: γ-Fe3+O(OH)
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Margarite
Formula: CaAl2(Al2Si2O10)(OH)2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Molybdenite
Formula: MoS2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Phenakite
Formula: Be2SiO4
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Quartz
Formula: SiO2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Rhodonite
Formula: Mn2+SiO3
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Rutile
Formula: TiO2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Scheelite
Formula: Ca(WO4)
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Talc
Formula: Mg3Si4O10(OH)2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Molybdenite2.EA.30MoS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Chrysoberyl4.BA.05BeAl2O4
var: Alexandrite4.BA.05BeAl2O4
Goethite4.00.α-Fe3+O(OH)
Lepidocrocite4.FE.15γ-Fe3+O(OH)
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Scheelite7.GA.05Ca(WO4)
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)
Margarite9.EC.30CaAl2(Al2Si2O10)(OH)2
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Phenakite9.AA.05Be2SiO4
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Rhodonite9.DK.05Mn2+SiO3
Talc9.EC.05Mg3Si4O10(OH)2
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Apatite'-
'Chlorite Group'-
'K Feldspar'-
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Molybdenite2.12.10.1MoS2
Group 4 - SIMPLE OXIDES
AX2
Rutile4.4.1.1TiO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Lepidocrocite6.1.2.2γ-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Chrysoberyl7.2.9.1BeAl2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [4] coordination
Phenakite51.1.1.1Be2SiO4
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=5
Rhodonite65.4.1.1Mn2+SiO3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Margarite71.2.2c.1CaAl2(Al2Si2O10)(OH)2
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Talc71.2.1.3Mg3Si4O10(OH)2
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
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Apatite'-
Beryl
var: Emerald
-Be3Al2(Si6O18)
'Chlorite Group'-
Chrysoberyl
var: Alexandrite
-BeAl2O4
'K Feldspar'-
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H MargariteCaAl2(Al2Si2O10)(OH)2
H TalcMg3Si4O10(OH)2
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H Goethiteα-Fe3+O(OH)
H Lepidocrociteγ-Fe3+O(OH)
BeBeryllium
Be Beryl (var: Emerald)Be3Al2(Si6O18)
Be Chrysoberyl (var: Alexandrite)BeAl2O4
Be PhenakiteBe2SiO4
Be BerylBe3Al2(Si6O18)
Be ChrysoberylBeAl2O4
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
OOxygen
O Beryl (var: Emerald)Be3Al2(Si6O18)
O Chrysoberyl (var: Alexandrite)BeAl2O4
O PhlogopiteKMg3(AlSi3O10)(OH)2
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O MuscoviteKAl2(AlSi3O10)(OH)2
O MargariteCaAl2(Al2Si2O10)(OH)2
O CalciteCaCO3
O DolomiteCaMg(CO3)2
O QuartzSiO2
O RutileTiO2
O TalcMg3Si4O10(OH)2
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O ScheeliteCa(WO4)
O RhodoniteMn2+SiO3
O ChromiteFe2+Cr23+O4
O PhenakiteBe2SiO4
O Goethiteα-Fe3+O(OH)
O Lepidocrociteγ-Fe3+O(OH)
O BerylBe3Al2(Si6O18)
O ChrysoberylBeAl2O4
FFluorine
F FluoriteCaF2
MgMagnesium
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg DolomiteCaMg(CO3)2
Mg TalcMg3Si4O10(OH)2
AlAluminium
Al Beryl (var: Emerald)Be3Al2(Si6O18)
Al Chrysoberyl (var: Alexandrite)BeAl2O4
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al MargariteCaAl2(Al2Si2O10)(OH)2
Al BerylBe3Al2(Si6O18)
Al ChrysoberylBeAl2O4
SiSilicon
Si Beryl (var: Emerald)Be3Al2(Si6O18)
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si MargariteCaAl2(Al2Si2O10)(OH)2
Si QuartzSiO2
Si TalcMg3Si4O10(OH)2
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si RhodoniteMn2+SiO3
Si PhenakiteBe2SiO4
Si BerylBe3Al2(Si6O18)
SSulfur
S MolybdeniteMoS2
S ChalcopyriteCuFeS2
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca MargariteCaAl2(Al2Si2O10)(OH)2
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca FluoriteCaF2
Ca ScheeliteCa(WO4)
TiTitanium
Ti RutileTiO2
CrChromium
Cr ChromiteFe2+Cr23+O4
MnManganese
Mn RhodoniteMn2+SiO3
FeIron
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe ChromiteFe2+Cr23+O4
Fe ChalcopyriteCuFeS2
Fe Goethiteα-Fe3+O(OH)
Fe Lepidocrociteγ-Fe3+O(OH)
CuCopper
Cu ChalcopyriteCuFeS2
MoMolybdenum
Mo MolybdeniteMoS2
WTungsten
W ScheeliteCa(WO4)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Cheilletz, Alain, Feraud, Gilbert, Giuliani, Gaston, and Ruffet, G. (1993) Emerald dating through 40Ar​/39Ar step-​heating and laser spot analysis of syngenetic phlogopite. Earth and Planetary Science Letters 120, 473-85.
Giuliani, Gaston, Cheilletz, Alain, Zimmermann, Jean-Louis, Ribeiro-Althoff, Ana Maria, France-Lanord, Christian, and Feraud, Gilbert (1997) Brazilian emerald deposits: genesis and topology. Chronique de la Recherche Minière, 65, 17-61.
Nápravník, Leonardo Aquino Pires (2011) Características Geoquímicas, Petrográficas e Metalogenéticas dos Flogopititos de Carnaíba e Socotó, Bahia.

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