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Medina pegmatite field, Pedra Azul pegmatite district, Minas Gerais, Brazili
Regional Level Types
Medina pegmatite fieldPegmatite Field
Pedra Azul pegmatite districtDistrict
Minas Gerais- not defined -
BrazilCountry

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Key
Lock Map
Locality type:Pegmatite Field
Largest Settlements:
PlacePopulation
Medina14,686 (2012)


Granite pegmatite(s).
The rare mineral herderite has been verified by chemical analysis. The analysis by Luiz Menezes gave 6.05-7.57 weight percent fluorine in very large greenish gray crystals to 8 cm.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

9 valid minerals.

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!

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Luis Menezes
Beryl
Formula: Be3Al2(Si6O18)
Reference: No reference listed
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Reference: Natural History Museum Vienna collection
Beryl var: Heliodor
Formula: Be3Al2(Si6O18)
Reference: No reference listed
'Biotite'
Reference: Luiz Alberto Dias Menezes Filho, Mario Luiz de Sá Carneiro Chaves, Coralie Heinis Dias, Daniel Atencio (2016): Recent mineral discoveries in the Coronel Murta, Taquaral, and Medina pegmatite fields, northeastern Minas Gerais, Brazil. REM - Int. Eng. J. 69, 301-307. [http://www.scielo.br/pdf/remi/v69n3/2448-167X-remi-69-03-0301.pdf]
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Luis Menezes
Herderite
Formula: CaBePO4(F,OH)
Reference: Luis Menezes
Microcline
Formula: K(AlSi3O8)
Reference: Luis Menezes
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Luis Menezes
Quartz
Formula: SiO2
Reference: Luis Menezes
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Luis Menezes
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Ref:, Carlos Barbosa specimen

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Herderite8.BA.10CaBePO4(F,OH)
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Beryl9.CJ.05Be3Al2(Si6O18)
var: Aquamarine9.CJ.05Be3Al2Si6O18
var: Heliodor9.CJ.05Be3Al2(Si6O18)
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Topaz9.AF.35Al2(SiO4)(F,OH)2
Unclassified Minerals, Rocks, etc.
'Biotite'-

List of minerals arranged by Dana 8th Edition classification

Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Herderite41.5.4.1CaBePO4(F,OH)
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
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
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
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, Mixtures, etc.
Beryl
var: Aquamarine
-Be3Al2Si6O18
var: Heliodor-Be3Al2(Si6O18)
'Biotite'-

List of minerals for each chemical element

HHydrogen
H TopazAl2(SiO4)(F,OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Be BerylBe3Al2(Si6O18)
Be Beryl (var: Heliodor)Be3Al2(Si6O18)
Be Beryl (var: Aquamarine)Be3Al2Si6O18
Be HerderiteCaBePO4(F,OH)
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O BerylBe3Al2(Si6O18)
O Beryl (var: Heliodor)Be3Al2(Si6O18)
O TopazAl2(SiO4)(F,OH)2
O Beryl (var: Aquamarine)Be3Al2Si6O18
O AlbiteNa(AlSi3O8)
O QuartzSiO2
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O FluorapatiteCa5(PO4)3F
O HerderiteCaBePO4(F,OH)
FFluorine
F TopazAl2(SiO4)(F,OH)2
F FluorapatiteCa5(PO4)3F
F HerderiteCaBePO4(F,OH)
NaSodium
Na AlbiteNa(AlSi3O8)
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al BerylBe3Al2(Si6O18)
Al Beryl (var: Heliodor)Be3Al2(Si6O18)
Al TopazAl2(SiO4)(F,OH)2
Al Beryl (var: Aquamarine)Be3Al2Si6O18
Al AlbiteNa(AlSi3O8)
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Si BerylBe3Al2(Si6O18)
Si Beryl (var: Heliodor)Be3Al2(Si6O18)
Si TopazAl2(SiO4)(F,OH)2
Si Beryl (var: Aquamarine)Be3Al2Si6O18
Si AlbiteNa(AlSi3O8)
Si QuartzSiO2
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
PPhosphorus
P FluorapatiteCa5(PO4)3F
P HerderiteCaBePO4(F,OH)
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca FluorapatiteCa5(PO4)3F
Ca HerderiteCaBePO4(F,OH)
FeIron
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Luiz Alberto Dias Menezes Filho, Mario Luiz de Sá Carneiro Chaves, Coralie Heinis Dias, Daniel Atencio (2016): Recent mineral discoveries in the Coronel Murta, Taquaral, and Medina pegmatite fields, northeastern Minas Gerais, Brazil. REM - Int. Eng. J. 69, 301-307. [http://www.scielo.br/pdf/remi/v69n3/2448-167X-remi-69-03-0301.pdf]

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