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Conta História mine, Antônio Pereira, Ouro Preto, Minas Gerais, Brazili
| Regional Level Types | |
|---|---|
| Conta História mine | Mine (Inactive) |
| Antônio Pereira | Municipal District |
| Ouro Preto | City |
| Minas Gerais | State |
| Brazil | Country |
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Latitude & Longitude (WGS84):
20° 14' 21'' South , 43° 31' 15'' West
Latitude & Longitude (decimal):
Type:
Mine (Inactive) - last checked 2024
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ouro Preto | 63,678 (2012) | 17.4km |
| Mariana | 45,236 (2012) | 18.9km |
| Itabirito | 39,452 (2012) | 29.3km |
| Barão de Cocais | 22,387 (2012) | 32.8km |
| Ouro Branco | 26,687 (2014) | 36.4km |
Manganese oxide deposit. The pyrophanite is Fe-bearing.
The Conta História deposit consists of a 2–7 m thick, concordant, manganese-rich layer (30–45% Mn) enveloped by a hard, compact, but extensively fractured seam of goethite in both the hanging- and the footwall.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
18 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Hematite var. Martite | 4.CB.05 | Fe2O3 |
| ⓘ | Pyrophanite | 4.CB.05 | Mn2+TiO3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| ⓘ | Ramsdellite | 4.DB.15a | Mn4+O2 |
| ⓘ | Nsutite | 4.DB.15c | (Mn4+,Mn2+)(O,OH)2 |
| ⓘ | Cryptomelane | 4.DK.05a | K(Mn4+7Mn3+)O16 |
| ⓘ | Romanèchite | 4.DK.10 | (Ba,H2O)2(Mn4+,Mn3+)5O10 |
| ⓘ | Todorokite | 4.DK.10 | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| ⓘ | Gibbsite | 4.FE.10 | Al(OH)3 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Rhodochrosite | 5.AB.05 | MnCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Group 9 - Silicates | |||
| ⓘ | Dravite | 9.CK.05 | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Carpholite ? | 9.DB.05 | Mn2+Al2(Si2O6)(OH)4 |
| Unclassified | |||
| ⓘ | 'Amphibole Supergroup' | - | AB2C5(T8O22)W2 |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'UM2004-26-O:FeMnTi' | - | (Mn3+,Fe3+)2Ti3O9 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Carpholite | Mn2+Al2(Si2O6)(OH)4 |
| H | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Gibbsite | Al(OH)3 |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Nsutite | (Mn4+,Mn2+)(O,OH)2 |
| H | ⓘ Romanèchite | (Ba,H2O)2(Mn4+,Mn3+)5O10 |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| B | Boron | |
| B | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | ⓘ Rhodochrosite | MnCO3 |
| O | Oxygen | |
| O | ⓘ Amphibole Supergroup | AB2C5(T8O22)W2 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Carpholite | Mn2+Al2(Si2O6)(OH)4 |
| O | ⓘ Cryptomelane | K(Mn74+Mn3+)O16 |
| O | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Gibbsite | Al(OH)3 |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Hematite var. Martite | Fe2O3 |
| O | ⓘ Nsutite | (Mn4+,Mn2+)(O,OH)2 |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Pyrophanite | Mn2+TiO3 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Ramsdellite | Mn4+O2 |
| O | ⓘ Rhodochrosite | MnCO3 |
| O | ⓘ Romanèchite | (Ba,H2O)2(Mn4+,Mn3+)5O10 |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| O | ⓘ UM2004-26-O:FeMnTi | (Mn3+,Fe3+)2Ti3O9 |
| Na | Sodium | |
| Na | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Mg | Magnesium | |
| Mg | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Mg | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Al | Aluminium | |
| Al | ⓘ Carpholite | Mn2+Al2(Si2O6)(OH)4 |
| Al | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Gibbsite | Al(OH)3 |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Si | Silicon | |
| Si | ⓘ Carpholite | Mn2+Al2(Si2O6)(OH)4 |
| Si | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| K | Potassium | |
| K | ⓘ Cryptomelane | K(Mn74+Mn3+)O16 |
| K | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ca | Calcium | |
| Ca | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Pyrophanite | Mn2+TiO3 |
| Ti | ⓘ UM2004-26-O:FeMnTi | (Mn3+,Fe3+)2Ti3O9 |
| Mn | Manganese | |
| Mn | ⓘ Carpholite | Mn2+Al2(Si2O6)(OH)4 |
| Mn | ⓘ Cryptomelane | K(Mn74+Mn3+)O16 |
| Mn | ⓘ Nsutite | (Mn4+,Mn2+)(O,OH)2 |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Mn | ⓘ Pyrophanite | Mn2+TiO3 |
| Mn | ⓘ Ramsdellite | Mn4+O2 |
| Mn | ⓘ Rhodochrosite | MnCO3 |
| Mn | ⓘ Romanèchite | (Ba,H2O)2(Mn4+,Mn3+)5O10 |
| Mn | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Mn | ⓘ UM2004-26-O:FeMnTi | (Mn3+,Fe3+)2Ti3O9 |
| Fe | Iron | |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Hematite var. Martite | Fe2O3 |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ UM2004-26-O:FeMnTi | (Mn3+,Fe3+)2Ti3O9 |
| Sr | Strontium | |
| Sr | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Ba | ⓘ Romanèchite | (Ba,H2O)2(Mn4+,Mn3+)5O10 |
| Ba | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
Other Regions, Features and Areas containing this locality
Brazil
- Minas Gerais
- ⭔Iron QuadrangleQuadrangle
South AmericaContinent
South America PlateTectonic Plate
- Araçuaí Belt (north)Orogenic Belt
- Brazilian ShieldShield
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References
[1]Cabral, A. R., Lehmann, B., Sattler, C. D., Pires, F. R. M., Kaneko, K. (2002) Hg–Tl-bearing manganese oxide from Conta História manganese deposit, Quadrilátero Ferrifero, Minas Gerais, Brazil. Applied Earth Science, 111 (2) 123-127 doi:10.1179/aes.2002.111.2.123
Cabral, Alexandre Raphael, Sattler, Carl-Diedrich (2004) Alteration of pyrophanite: transition in chemical composition to a manganese analogue of pseudorutile – evidence from the Quadrilátero Ferrífero of Minas Gerais, Brazil. Neues Jahrbuch für Mineralogie - Monatshefte, 2004 (3) 97-103 doi:10.1127/0028-3649/2004/2004-0097
Conta História mine, Antônio Pereira, Ouro Preto, Minas Gerais, Brazil