Conselheiro Pena pegmatite district, Conselheiro Pena, Minas Gerais, Brazili
| Regional Level Types | |
|---|---|
| Conselheiro Pena pegmatite district | Pegmatite Field |
| Conselheiro Pena | Municipality |
| Minas Gerais | State |
| Brazil | Country |
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Latitude & Longitude (WGS84):
19° 10' 23'' South , 41° 28' 20'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
The Conselheiro Pena Pegmatite District lies 50-100 km southeast of Governador Valadares where it stretches about 110 km from SW to NE.
The district includes more than 205 pegmatites that have been mined.
Over 50 minerals have been found in the district, including much gem-quality tourmaline, aquamarine, morganite, and kunzite besides industrial materials such as K-feldspar, albite, mica, and beryl ore.
Many of the pegmatites are rich in phosphates, including the primary triphylite and montebrasite, and more than a dozen secondary phosphates for which the district is best known, most notably brazilianite and variscite.
The district is also known for red rubellite and multi-color elbaite including blue-caps.
Today the Conselheiro Pena pegmatites are mined mostly for industrial feldspar (mainly microcline), plus minerals for collectors.
Tectonically, the Conselheiro Pena Pegmatite District lies within the Araçuaí Orogen, a structurally complex crustal segment created when two microcontinents collided during the Brasiliano Orogeny to form a portion of the southern supercontinent of Gondwana.
Two-mica granites of the Urucum suite were generated during that orogeny at ca. 582 Ma, and pegmatites evolved by fractional crystallization from those.
Most pegmatite bodies in the district are tabular or lenticular, but a few are tear-drop shaped.
The pegmatites solidified at a temperature of about 600 degrees C and under pressures of 4-5 kbar, corresponding to depths of 12-15 km (Nalini et al., 2015).
They intruded mostly along steeply-dipping strike-slip shear zones in the metamorphics of the Rio Doce Group.
These rocks include sillimanite-staurolite-garnet-mica schist with interbedded marble, metawackes, and metaquartzites that were originally marine sedimentary rocks deposited in a narrow seaway that once separated the two colliding microcontinents.
NK, rev. December 2017
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
19 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ 'Apatite' Formula: Ca5(PO4)3A |
| ⓘ Beraunite Formula: Fe3+6(PO4)4O(OH)4 · 6H2O |
| ⓘ Bermanite Formula: Mn2+Mn3+2(PO4)2(OH)2 · 4H2O |
| ⓘ Beryl Formula: Be3Al2(Si6O18) References: collection of Martin SlamaIdentification: Visual Identification |
| ⓘ Borocookeite Formula: (LiAl4◻)[BSi3O10](OH)8 References: |
| ⓘ Brazilianite Formula: NaAl3(PO4)2(OH)4 References: |
| ⓘ Cookeite Formula: (LiAl4◻)[AlSi3O10](OH)8 References: (n.d.) Knut Eldjarn collection.obtained from Carlos Barbosa |
| ⓘ Euclase Formula: BeAl(SiO4)(OH) References: |
| ⓘ Hureaulite Formula: Mn2+5(PO3OH)2(PO4)2 · 4H2O References: |
| ⓘ Laueite Formula: Mn2+Fe3+2(PO4)2(OH)2 · 8H2O |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Phosphosiderite Formula: FePO4 · 2H2O |
| ⓘ Quartz Formula: SiO2 References: Kuno Stoeckli CollectionIdentified by Alexander Wong: Visual Identification |
| ⓘ Rockbridgeite Formula: (Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)5 |
| ⓘ Siderite Formula: FeCO3 |
| ⓘ Stewartite Formula: Mn2+Fe3+2(PO4)2(OH)2 · 8H2O |
| ⓘ Strengite Formula: FePO4 · 2H2O |
| ⓘ Strunzite Formula: Mn2+Fe3+2(PO4)2(OH)2 · 6H2O |
| ⓘ Titanite ? Formula: CaTi(SiO4)O References: |
| ⓘ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Rockbridgeite | 8.BC.10 | (Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)5 |
| ⓘ | Brazilianite | 8.BK.05 | NaAl3(PO4)2(OH)4 |
| ⓘ | Hureaulite | 8.CB.10 | Mn2+5(PO3OH)2(PO4)2 · 4H2O |
| ⓘ | Phosphosiderite | 8.CD.05 | FePO4 · 2H2O |
| ⓘ | Strengite | 8.CD.10 | FePO4 · 2H2O |
| ⓘ | Bermanite | 8.DC.20 | Mn2+Mn3+2(PO4)2(OH)2 · 4H2O |
| ⓘ | Strunzite | 8.DC.25 | Mn2+Fe3+2(PO4)2(OH)2 · 6H2O |
| ⓘ | Beraunite | 8.DC.27 | Fe3+6(PO4)4O(OH)4 · 6H2O |
| ⓘ | Laueite | 8.DC.30 | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O |
| ⓘ | Stewartite | 8.DC.30 | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O |
| Group 9 - Silicates | |||
| ⓘ | Euclase | 9.AE.10 | BeAl(SiO4)(OH) |
| ⓘ | Titanite ? | 9.AG.15 | CaTi(SiO4)O |
| ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Cookeite | 9.EC.55 | (LiAl4◻)[AlSi3O10](OH)8 |
| ⓘ | Borocookeite | 9.EC.55 | (LiAl4◻)[BSi3O10](OH)8 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Apatite' | - | Ca5(PO4)3A |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
| H | ⓘ Bermanite | Mn2+Mn23+(PO4)2(OH)2 · 4H2O |
| H | ⓘ Brazilianite | NaAl3(PO4)2(OH)4 |
| H | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| H | ⓘ Euclase | BeAl(SiO4)(OH) |
| H | ⓘ Hureaulite | Mn52+(PO3OH)2(PO4)2 · 4H2O |
| H | ⓘ Laueite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Phosphosiderite | FePO4 · 2H2O |
| H | ⓘ Rockbridgeite | (Fe2+0.5Fe3+0.5)2Fe33+(PO4)3(OH)5 |
| H | ⓘ Stewartite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| H | ⓘ Strengite | FePO4 · 2H2O |
| H | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
| H | ⓘ Borocookeite | (LiAl4◻)[BSi3O10](OH)8 |
| Li | Lithium | |
| Li | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| Li | ⓘ Borocookeite | (LiAl4◻)[BSi3O10](OH)8 |
| Be | Beryllium | |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| Be | ⓘ Euclase | BeAl(SiO4)(OH) |
| B | Boron | |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| B | ⓘ Borocookeite | (LiAl4◻)[BSi3O10](OH)8 |
| C | Carbon | |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
| O | ⓘ Bermanite | Mn2+Mn23+(PO4)2(OH)2 · 4H2O |
| O | ⓘ Brazilianite | NaAl3(PO4)2(OH)4 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| O | ⓘ Euclase | BeAl(SiO4)(OH) |
| O | ⓘ Hureaulite | Mn52+(PO3OH)2(PO4)2 · 4H2O |
| O | ⓘ Laueite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Phosphosiderite | FePO4 · 2H2O |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rockbridgeite | (Fe2+0.5Fe3+0.5)2Fe33+(PO4)3(OH)5 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Stewartite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| O | ⓘ Strengite | FePO4 · 2H2O |
| O | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
| O | ⓘ Titanite | CaTi(SiO4)O |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Borocookeite | (LiAl4◻)[BSi3O10](OH)8 |
| O | ⓘ Apatite | Ca5(PO4)3A |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Brazilianite | NaAl3(PO4)2(OH)4 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Brazilianite | NaAl3(PO4)2(OH)4 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| Al | ⓘ Euclase | BeAl(SiO4)(OH) |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Borocookeite | (LiAl4◻)[BSi3O10](OH)8 |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| Si | ⓘ Euclase | BeAl(SiO4)(OH) |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Titanite | CaTi(SiO4)O |
| Si | ⓘ Borocookeite | (LiAl4◻)[BSi3O10](OH)8 |
| P | Phosphorus | |
| P | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
| P | ⓘ Bermanite | Mn2+Mn23+(PO4)2(OH)2 · 4H2O |
| P | ⓘ Brazilianite | NaAl3(PO4)2(OH)4 |
| P | ⓘ Hureaulite | Mn52+(PO3OH)2(PO4)2 · 4H2O |
| P | ⓘ Laueite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| P | ⓘ Phosphosiderite | FePO4 · 2H2O |
| P | ⓘ Rockbridgeite | (Fe2+0.5Fe3+0.5)2Fe33+(PO4)3(OH)5 |
| P | ⓘ Stewartite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| P | ⓘ Strengite | FePO4 · 2H2O |
| P | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
| P | ⓘ Apatite | Ca5(PO4)3A |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Titanite | CaTi(SiO4)O |
| Ca | ⓘ Apatite | Ca5(PO4)3A |
| Ti | Titanium | |
| Ti | ⓘ Titanite | CaTi(SiO4)O |
| Mn | Manganese | |
| Mn | ⓘ Bermanite | Mn2+Mn23+(PO4)2(OH)2 · 4H2O |
| Mn | ⓘ Hureaulite | Mn52+(PO3OH)2(PO4)2 · 4H2O |
| Mn | ⓘ Laueite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| Mn | ⓘ Stewartite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| Mn | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
| Fe | Iron | |
| Fe | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
| Fe | ⓘ Laueite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| Fe | ⓘ Phosphosiderite | FePO4 · 2H2O |
| Fe | ⓘ Rockbridgeite | (Fe2+0.5Fe3+0.5)2Fe33+(PO4)3(OH)5 |
| Fe | ⓘ Siderite | FeCO3 |
| Fe | ⓘ Stewartite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| Fe | ⓘ Strengite | FePO4 · 2H2O |
| Fe | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
Other Regions, Features and Areas containing this locality
South AmericaContinent
South America PlateTectonic Plate
- Brazilian ShieldShield
- Ribeira Belt (north)Volcanic Arc
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Conselheiro Pena pegmatite district, Conselheiro Pena, Minas Gerais, Brazil