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Marambaia (Ponto do Marambaia), Caraí, Minas Gerais, Brazili
Regional Level Types
Marambaia (Ponto do Marambaia)- not defined -
CaraíMunicipality
Minas GeraisState
BrazilCountry

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Key
04066740014947323622269.jpg
200 m tunnel in Marambaia Brazil

Marambaia, Caraí, Minas Gerais, Brazil
08792880014947323625684.jpg
Entry of a 200m tunnel in Marambaia

Marambaia, Caraí, Minas Gerais, Brazil
05356590014947323633716.jpg
1984: Washing alluvial material, looking for Aquamarine

Marambaia, Caraí, Minas Gerais, Brazil
04066740014947323622269.jpg
200 m tunnel in Marambaia Brazil

Marambaia, Caraí, Minas Gerais, Brazil
08792880014947323625684.jpg
Entry of a 200m tunnel in Marambaia

Marambaia, Caraí, Minas Gerais, Brazil
05356590014947323633716.jpg
1984: Washing alluvial material, looking for Aquamarine

Marambaia, Caraí, Minas Gerais, Brazil
04066740014947323622269.jpg
200 m tunnel in Marambaia Brazil

Marambaia, Caraí, Minas Gerais, Brazil
08792880014947323625684.jpg
Entry of a 200m tunnel in Marambaia

Marambaia, Caraí, Minas Gerais, Brazil


Aquamarine- and topaz-bearing pegmatites 70 km N of Teófilo Otoni.

"Aquamarines too have capitalized in recent years on the quality of Brazilian specimens. An early find, in 1910, weighed in at more than a hundred kilogrammes, a phenomenal weight. The colossal Marambaya [sic] aquamarine crystal, as it is known, would today be worth over US$ 25 million. At the time it was of little more than curiosity value." [Sauer, 1982, p. 13].

"In 1910 a single aquamarine crystal, which produced a staggering 550,000 carats, was found in the Marambaia region in Minas Gerais state. This crystal, in terms of dimension alone, holds the world record in gem aquamarines. A second famous specimen, found in 1954, weighed 35 kilogrammes and is the most valuable to have been discovered in the world." [Sauer, 1982, p. 26.]

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List

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

13 valid minerals.

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Beryl
Formula: Be3Al2(Si6O18)
Reference: Van King; Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Beryl var. Aquamarine
Formula: Be3Al2Si6O18
Colour: Blue (heat treated)
Description: A 110 kg, 48x38 cm waterworn crystal
Reference: Proctor, K. (1984). Gem pegmatites of Minas Gerais, Brazil: exploration, occurrence, and aquamarine deposits. Gems and Gemology, 20(2), 78-100.
Beryl var. Heliodor
Formula: Be3Al2(Si6O18)
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
'Feldspar Group'
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Goethite
Formula: α-Fe3+O(OH)
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Gold
Formula: Au
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
'Hornblende'
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Ilmenite
Formula: Fe2+TiO3
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Quartz
Formula: SiO2
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Quartz var. Amethyst
Formula: SiO2
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Rutile
Formula: TiO2
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Titanite
Formula: CaTi(SiO4)O
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Ferreira, M., M.A. Fonseca, Pires, F. (2005): Pegmatitos mineralizados em água-marinha e topázio do Ponto do Marambaia, Minas Gerais: tipologia e relações com o Granito Caladão. Revista Brasileira de Geociências, 35, 463-473.; Van King; Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Sauer, J.R. (1982) Brazil, Paradise of Gemstones. Gemological Institute of America, 135 pp. (p. 44).
'Tourmaline var. Rubellite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Sauer, J.R. (1982) Brazil, Paradise of Gemstones. Gemological Institute of America, 135 pp. (p. 44).
'Tourmaline var. Verdelite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Sauer, J.R. (1982) Brazil, Paradise of Gemstones. Gemological Institute of America, 135 pp. (p. 44).
'Tourmaline var. Watermelon Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Sauer, J.R. (1982) Brazil, Paradise of Gemstones. Gemological Institute of America, 135 pp. (p. 44).
Zircon
Formula: Zr(SiO4)
Reference: Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var. Amethyst4.DA.05SiO2
Rutile4.DB.05TiO2
Group 9 - Silicates
Beryl9.CJ.05Be3Al2(Si6O18)
var. Aquamarine9.CJ.05Be3Al2Si6O18
var. Heliodor9.CJ.05Be3Al2(Si6O18)
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Titanite9.AG.15CaTi(SiO4)O
Topaz9.AF.35Al2(SiO4)(F,OH)2
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
'Feldspar Group'-
'Hornblende'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z
'var. Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
'var. Verdelite'-A(D3)G6(T6O18)(BO3)3X3Z
'var. Watermelon Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
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 [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(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
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
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 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Apatite'-Ca5(PO4)3(Cl/F/OH)
Beryl
var. Aquamarine
-Be3Al2Si6O18
var. Heliodor-Be3Al2(Si6O18)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
'Feldspar Group'-
'Hornblende'-
Quartz
var. Amethyst
-SiO2
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z
'var. Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
'var. Verdelite'-A(D3)G6(T6O18)(BO3)3X3Z
'var. Watermelon Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H TopazAl2(SiO4)(F,OH)2
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H ApatiteCa5(PO4)3(Cl/F/OH)
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Goethiteα-Fe3+O(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Be Beryl var. AquamarineBe3Al2Si6O18
Be Beryl var. HeliodorBe3Al2(Si6O18)
Be BerylBe3Al2(Si6O18)
BBoron
B Tourmaline var. RubelliteA(D3)G6(T6O18)(BO3)3X3Z
B Tourmaline var. VerdeliteA(D3)G6(T6O18)(BO3)3X3Z
B Tourmaline var. Watermelon TourmalineA(D3)G6(T6O18)(BO3)3X3Z
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O Beryl var. AquamarineBe3Al2Si6O18
O Beryl var. HeliodorBe3Al2(Si6O18)
O TopazAl2(SiO4)(F,OH)2
O BerylBe3Al2(Si6O18)
O Tourmaline var. RubelliteA(D3)G6(T6O18)(BO3)3X3Z
O Tourmaline var. VerdeliteA(D3)G6(T6O18)(BO3)3X3Z
O Tourmaline var. Watermelon TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O Quartz var. AmethystSiO2
O ApatiteCa5(PO4)3(Cl/F/OH)
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Goethiteα-Fe3+O(OH)
O IlmeniteFe2+TiO3
O MagnetiteFe2+Fe23+O4
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O RutileTiO2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O TitaniteCaTi(SiO4)O
O ZirconZr(SiO4)
FFluorine
F TopazAl2(SiO4)(F,OH)2
F ApatiteCa5(PO4)3(Cl/F/OH)
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
NaSodium
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
AlAluminium
Al Beryl var. AquamarineBe3Al2Si6O18
Al Beryl var. HeliodorBe3Al2(Si6O18)
Al TopazAl2(SiO4)(F,OH)2
Al BerylBe3Al2(Si6O18)
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Si Beryl var. AquamarineBe3Al2Si6O18
Si Beryl var. HeliodorBe3Al2(Si6O18)
Si TopazAl2(SiO4)(F,OH)2
Si BerylBe3Al2(Si6O18)
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si Quartz var. AmethystSiO2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si TitaniteCaTi(SiO4)O
Si ZirconZr(SiO4)
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca TitaniteCaTi(SiO4)O
TiTitanium
Ti BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
FeIron
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Goethiteα-Fe3+O(OH)
Fe IlmeniteFe2+TiO3
Fe MagnetiteFe2+Fe23+O4
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
ZrZirconium
Zr ZirconZr(SiO4)
AuGold
Au GoldAu

Fossils

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
White, J.S. (?) (1980) Interview: Allan Caplan. The Mineralogical Record, 11(6), 351-360. [Image of aquamarine specimen from the locality, Smithsonian specimen R7937 purchased in 1939 on pp. 354-355.]
Sauer, J.R. (1982) Brazil, Paradise of Gemstones. Gemological Institute of America, 135 pp. (pp. 13, 26, 28, 30, 44).
Ferreira, M., Fonseca, M.A., and Pires, F. (2005) Pegmatitos mineralizados em água-marinha e topázio do Ponto do Marambaia, Minas Gerais: tipologia e relações com o Granito Caladão. Revista Brasileira de Geociências, 35, 463-473.
Araújo, T. G. R. D. (2018). Fingerprint e estudo cristaloquímico do topázio imperial da região de Ouro Preto (Minas Gerais, Brasil). PhD thesis

Localities in this Region

Other Regions, Features and Areas that Intersect

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.
 
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