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Alto do Giz pegmatite, Equador, Borborema mineral province, Rio Grande do Norte, Brazil

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Latitude & Longitude (WGS84): 6° 54' 18'' South , 36° 43' 17'' West
Latitude & Longitude (decimal): -6.90500,-36.72139
GeoHash:G#: 7nvbsqur3
Locality type:Pegmatite
Köppen climate type:BSh : Hot semi-arid (steppe) climate


The Alto do Giz Be-Ta-Li pegmatite is mined for tantalum.
It is located 2 km south of the road connecting the towns of Equador and Parelhas. Produced 300 kg of simpsonite in 1943.

Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

alto do giz
Alto do Giz, Rio Grande do Norte, Brazil

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


21 valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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:

Albite
Formula: Na(AlSi3O8)
Reference: various added photos; Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita 43, 207-228.
Alumotantite
Formula: AlTaO4
Reference: http://rruff.geo.arizona.edu/doclib/hom/parabariomicrolite.pdf.; Canadian Mineralogist (1986): 24: 655-663.
Beryl
Formula: Be3Al2(Si6O18)
Reference: http://rruff.geo.arizona.edu/doclib/hom/parabariomicrolite.pdf.
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Reference: Re-entry of old data
Beryl var: Heliodor
Formula: Be3Al2(Si6O18)
Reference: Re-entry of old data
Bismoclite
Formula: BiOCl
Reference: Re-entry of old data; Färber, G. & Witzke, T. (2011): Exotische Pseudomorphosen aus Brasilien: Waylandit nach Wismutglanz. Lapis 36 (5), 42-43.
Brazilianite
Formula: NaAl3(PO4)2(OH)4
Cassiterite
Formula: SnO2
Reference: Re-entry of old data
Columbite-(Mn)
Formula: (Mn,Fe)(Nb,Ta)2O6
Reference: Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita 43, 207-228.
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Re-entry of old data
Euclase
Formula: BeAl(SiO4)(OH)
Reference: [www.johnbetts-fineminerals.com]
'Hydrokenomicrolite-3R' (FRL)
Formula: 2Ta2[O,(OH)]6(H2O)
Description: First described as parabariomicrolite (Ercit et al., 1986). Discredited by IMA in 2016 and showed to be identical to hydrokenomicrolite-3R (Atencio, 2016).
Reference: Ercit, T. S., Hawthorne, F. C., Cerný, P. (1986) Parabariomicrolite, a new species, and its structural relationship to the pyrochlore group, The Canadian Mineralogist 24: 655-663; Atencio, D. (2016): Parabariomicrolite discredited as identical to hydrokenomicrolite-3R. Mineralogical Magazine, 80: 923-924.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita 43, 207-228.
'Lepidolite'
Reference: Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita 43, 207-228.
Microcline
Formula: K(AlSi3O8)
Reference: various added photos
Microlite Group
Formula: A2-mTa2X6-wZ-n
Reference: http://rruff.geo.arizona.edu/doclib/hom/parabariomicrolite.pdf.; Canadian Mineralogist (1986): 24: 655-663.; Beurlen, H., Soares, D. R., Thomas, R., Prado-Borges, L. E., & Castro, C. D. (2005). Mineral chemistry of tantalate species new in the Borborema Pegmatitic Province, Northeast Brazil. Anais da Academia Brasileira de Ciências, 77(1), 169-182
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: various added photos
Natrotantite
Formula: Na2Ta4O11
Reference: http://rruff.geo.arizona.edu/doclib/hom/parabariomicrolite.pdf.; Canadian Mineralogist (1986): 24: 655-663.
'Pegmatite'
Reference: Automatically generated from locality name
Petalite
Formula: LiAl(Si4O10)
Reference: http://rruff.geo.arizona.edu/doclib/hom/parabariomicrolite.pdf.; Canadian Mineralogist (1986): 24: 655-663.
Quartz
Formula: SiO2
Reference: Canadian Mineralogist (1986): 24: 655-663.; Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita 43, 207-228.
Simpsonite
Formula: Al4(Ta,Nb)3O13(OH,F)
Reference: Rob Lavinsky; http://rruff.geo.arizona.edu/doclib/hom/parabariomicrolite.pdf.; Mineralogical Magazine 1963 33 : 458-466; Canadian Mineralogist (1986): 24: 655-663.; Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita 43, 207-228.; Beurlen, H., Soares, D. R., Thomas, R., Prado-Borges, L. E., & Castro, C. D. (2005). Mineral chemistry of tantalate species new in the Borborema Pegmatitic Province, Northeast Brazil. Anais da Academia Brasileira de Ciências, 77(1), 169-182
Spodumene
Formula: LiAlSi2O6
Reference: http://rruff.geo.arizona.edu/doclib/hom/parabariomicrolite.pdf.; Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita 43, 207-228.
Stibiotantalite
Formula: Sb(Ta,Nb)O4
Reference: http://rruff.geo.arizona.edu/doclib/hom/parabariomicrolite.pdf.; Canadian Mineralogist (1986): 24: 655-663.
Tantalite-(Mn)
Formula: MnTa2O6
Reference: [www.johnbetts-fineminerals.com]; http://rruff.geo.arizona.edu/doclib/hom/parabariomicrolite.pdf.; Canadian Mineralogist (1986): 24: 655-663.; Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita 43, 207-228.
Tapiolite-(Fe)
Formula: (Fe,Mn)(Ta,Nb)2O6
Reference: Paul Bongaerts collection; Canadian Mineralogist (1986): 24: 655-663.

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
Bismoclite3.DC.25BiOCl
Group 4 - Oxides and Hydroxides
'Alumotantite'4.DB.55AlTaO4
Cassiterite4.DB.05SnO2
Columbite-(Mn)4.DB.35(Mn,Fe)(Nb,Ta)2O6
Microlite Group4.00.A2-mTa2X6-wZ-n
Natrotantite4.DJ.05Na2Ta4O11
Quartz4.DA.05SiO2
Simpsonite4.DC.10Al4(Ta,Nb)3O13(OH,F)
Stibiotantalite4.DE.30Sb(Ta,Nb)O4
Tantalite-(Mn)4.DB.35MnTa2O6
Tapiolite-(Fe)4.DB.10(Fe,Mn)(Ta,Nb)2O6
Group 8 - Phosphates, Arsenates and Vanadates
Brazilianite8.BK.05NaAl3(PO4)2(OH)4
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
Beryl9.CJ.05Be3Al2(Si6O18)
var: Aquamarine9.CJ.05Be3Al2Si6O18
var: Heliodor9.CJ.05Be3Al2(Si6O18)
Elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Euclase9.AE.10BeAl(SiO4)(OH)
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Petalite9.EF.05LiAl(Si4O10)
Spodumene9.DA.30LiAlSi2O6
Unclassified Minerals, Rocks, etc.
Hydrokenomicrolite-3R (TL)-2Ta2[O,(OH)]6(H2O)
Lepidolite-
Pegmatite-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
AX2
Cassiterite4.4.1.5SnO2
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Alumotantite8.1.7.1AlTaO4
Stibiotantalite8.1.6.2Sb(Ta,Nb)O4
A2B2O6(O,OH,F)
Microlite Group8.2.2.1A2-mTa2X6-wZ-n
AB2O6
Columbite-(Mn)8.3.2.4(Mn,Fe)(Nb,Ta)2O6
Tantalite-(Mn)8.3.2.3MnTa2O6
Tapiolite-(Fe)8.3.1.1(Fe,Mn)(Ta,Nb)2O6
(AB)6O11·nH2O
Natrotantite8.6.2.2Na2Ta4O11
Miscellaneous
Simpsonite8.7.5.1Al4(Ta,Nb)3O13(OH,F)
Group 10 - OXYHALIDES AND HYDROXYHALIDES
A(O,OH)Xq
Bismoclite10.2.1.2BiOCl
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Brazilianite41.5.7.1NaAl3(PO4)2(OH)4
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
Euclase52.2.1.1BeAl(SiO4)(OH)
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
Elbaite61.3.1.8Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Spodumene65.1.4.1LiAlSi2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(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
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
Beryl
var: Aquamarine
-Be3Al2Si6O18
var: Heliodor-Be3Al2(Si6O18)
'Hydrokenomicrolite-3R' (FRL)-2Ta2[O,(OH)]6(H2O)
Kaolinite-Al2(Si2O5)(OH)4
'Lepidolite'-
'Pegmatite'-

List of minerals for each chemical element

HHydrogen
H BrazilianiteNaAl3(PO4)2(OH)4
H ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
H EuclaseBeAl(SiO4)(OH)
H Hydrokenomicrolite-3R2Ta2[O,(OH)]6(H2O)
H KaoliniteAl2(Si2O5)(OH)4
H MuscoviteKAl2(AlSi3O10)(OH)2
H SimpsoniteAl4(Ta,Nb)3O13(OH,F)
LiLithium
Li ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Li PetaliteLiAl(Si4O10)
Li SpodumeneLiAlSi2O6
BeBeryllium
Be Beryl (var: Aquamarine)Be3Al2Si6O18
Be BerylBe3Al2(Si6O18)
Be EuclaseBeAl(SiO4)(OH)
Be Beryl (var: Heliodor)Be3Al2(Si6O18)
BBoron
B ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O AlbiteNa(AlSi3O8)
O AlumotantiteAlTaO4
O Beryl (var: Aquamarine)Be3Al2Si6O18
O BerylBe3Al2(Si6O18)
O BismocliteBiOCl
O BrazilianiteNaAl3(PO4)2(OH)4
O CassiteriteSnO2
O Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
O ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
O EuclaseBeAl(SiO4)(OH)
O Beryl (var: Heliodor)Be3Al2(Si6O18)
O Hydrokenomicrolite-3R2Ta2[O,(OH)]6(H2O)
O KaoliniteAl2(Si2O5)(OH)4
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O NatrotantiteNa2Ta4O11
O PetaliteLiAl(Si4O10)
O QuartzSiO2
O SimpsoniteAl4(Ta,Nb)3O13(OH,F)
O SpodumeneLiAlSi2O6
O StibiotantaliteSb(Ta,Nb)O4
O Tantalite-(Mn)MnTa2O6
O Tapiolite-(Fe)(Fe,Mn)(Ta,Nb)2O6
NaSodium
Na AlbiteNa(AlSi3O8)
Na BrazilianiteNaAl3(PO4)2(OH)4
Na ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Na NatrotantiteNa2Ta4O11
AlAluminium
Al AlbiteNa(AlSi3O8)
Al AlumotantiteAlTaO4
Al Beryl (var: Aquamarine)Be3Al2Si6O18
Al BerylBe3Al2(Si6O18)
Al BrazilianiteNaAl3(PO4)2(OH)4
Al ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Al EuclaseBeAl(SiO4)(OH)
Al Beryl (var: Heliodor)Be3Al2(Si6O18)
Al KaoliniteAl2(Si2O5)(OH)4
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al PetaliteLiAl(Si4O10)
Al SimpsoniteAl4(Ta,Nb)3O13(OH,F)
Al SpodumeneLiAlSi2O6
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Beryl (var: Aquamarine)Be3Al2Si6O18
Si BerylBe3Al2(Si6O18)
Si ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Si EuclaseBeAl(SiO4)(OH)
Si Beryl (var: Heliodor)Be3Al2(Si6O18)
Si KaoliniteAl2(Si2O5)(OH)4
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si PetaliteLiAl(Si4O10)
Si QuartzSiO2
Si SpodumeneLiAlSi2O6
PPhosphorus
P BrazilianiteNaAl3(PO4)2(OH)4
ClChlorine
Cl BismocliteBiOCl
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
MnManganese
Mn Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Mn Tantalite-(Mn)MnTa2O6
FeIron
Fe Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Fe Tapiolite-(Fe)(Fe,Mn)(Ta,Nb)2O6
NbNiobium
Nb Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
SnTin
Sn CassiteriteSnO2
SbAntimony
Sb StibiotantaliteSb(Ta,Nb)O4
TaTantalum
Ta AlumotantiteAlTaO4
Ta Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Ta Hydrokenomicrolite-3R2Ta2[O,(OH)]6(H2O)
Ta Microlite GroupA2-mTa2X6-wZ-n
Ta NatrotantiteNa2Ta4O11
Ta SimpsoniteAl4(Ta,Nb)3O13(OH,F)
Ta StibiotantaliteSb(Ta,Nb)O4
Ta Tantalite-(Mn)MnTa2O6
Ta Tapiolite-(Fe)(Fe,Mn)(Ta,Nb)2O6
BiBismuth
Bi BismocliteBiOCl

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

Ediacaran
541 - 635 Ma



ID: 2289832
Equador Formação

Age: Ediacaran (541 - 635 Ma)

Lithology: Muscovita - quartzito

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

Paleoproterozoic
1600 - 2500 Ma



ID: 3186989
Paleoproterozoic crystalline metamorphic rocks

Age: Proterozoic (1600 - 2500 Ma)

Lithology: Medium-high grade orthogneiss/paragneiss/metavolcanic gneiss

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]

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)
Ercit, T. S., Hawthorne, F. C., Cerný, P. (1986) Parabariomicrolite, a new species, and its structural relationship to the pyrochlore group, The Canadian Mineralogist 24: 655-663
Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita 43, 207-228.


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