Ipê mine, Golconda mining district, Governador Valadares, Minas Gerais, Brazili
Regional Level Types | |
---|---|
Ipê mine | Mine |
Golconda mining district | Mining District |
Governador Valadares | Municipality |
Minas Gerais | State |
Brazil | Country |
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Latitude & Longitude (WGS84):
18° 44' 35'' South , 42° 6' 26'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Governador Valadares | 250,878 (2012) | 20.5km |
Peçanha | 6,902 (2012) | 52.1km |
Açucena | 14,505 (2012) | 58.9km |
Belo Oriente | 18,470 (2012) | 66.1km |
Mindat Locality ID:
21776
Long-form identifier:
mindat:1:2:21776:4
GUID (UUID V4):
45cb66b4-d66e-4494-a314-61984aa1e034
Note: There are numerous pits in the area reported for this mine, and it may be that material from more than one of these pits is labelled as from “Ipê mine.”
The mined area is roughly 15-20 km northwest of Governador Valadares, between the communities of Chonim on Brazil Highway 451 and São Antônio do Pontal on Brazil Highway 259. This is within the São José da Safira Pegmatite District, where mining began after the end of the Second World War. The Ipê area itself, however, has not been a prolific source of collector’s specimens. In particular, however, the Ipê pegmatite is known for production of microlite group minerals and others containing niobium, tantalum, and beryllium.
The Ipê Pegmatite intrudes fine-grained marine sediments including chert with banded iron formation intercalated with basaltic volcanics. These are sea-floor deposits, assigned to the Neoproterozoic Ribeirão da Folha Formation in the Macaúbas Group (deposited ca. 670 Ma). They were metamorphosed to garnet-quartz-mica schists and amphibolites during the Brazilian Orogeny, ca. 630 Ma., when the marine basin closed at a convergent plate boundary and the Araçuaí orogen was produced. Post-collisional decompression led to melting that produced granites at ca. 535-500 Ma. The resulting plutons show igneous flow structures, contain xenoliths and roof pendants of the country rocks, and are capped by scattered zones of residual pegmatites which are the targets of mining in this area.
NK, September 2016
Note to the mineralist:
For discussion on oxycalciomicrolite see messageboard at https://www.mindat.org/mesg-281777.html#281783
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
ⓘ Albite Formula: Na(AlSi3O8) |
ⓘ Bertrandite Formula: Be4(Si2O7)(OH)2 |
ⓘ Beryl Formula: Be3Al2(Si6O18) Description: Medium to low gem quality. |
ⓘ Beryl var. Aquamarine Formula: Be3Al2Si6O18 Description: Medium to low gem quality. |
ⓘ Columbite-(Fe) Formula: Fe2+Nb2O6 References: |
ⓘ Fluorcalciomicrolite Formula: (Ca,Na)2(Ta,Nb)2O6F Habit: ~1 mm transparent yellowish octahedrons precepitations over albite crystalline crusts Colour: honey-yellow Fluorescence: none Description: Composition of the mineral is (Ca.95Na.62Pb.05)1.62(Ta1.54Nb.34Ti.12)2.00O5.50(F1.00OH.50)1.50 References: |
ⓘ 'K Feldspar' |
ⓘ Microcline Formula: K(AlSi3O8) References: |
ⓘ 'Microlite Group' Formula: A2-mTa2X6-wZ-n Habit: octahedrons to 7mm |
ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
ⓘ Oxycalciomicrolite Formula: Ca2Ta2O6O |
ⓘ Quartz Formula: SiO2 References: |
ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) References: |
ⓘ Tantalite-(Mn) Formula: Mn2+Ta2O6 |
ⓘ Zircon Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 4 - Oxides and Hydroxides | |||
---|---|---|---|
ⓘ | 'Microlite Group' | 4.00. | A2-mTa2X6-wZ-n |
ⓘ | Quartz | 4.DA.05 | SiO2 |
ⓘ | Columbite-(Fe) | 4.DB.35 | Fe2+Nb2O6 |
ⓘ | Tantalite-(Mn) | 4.DB.35 | Mn2+Ta2O6 |
ⓘ | Fluorcalciomicrolite | 4.DH.15 | (Ca,Na)2(Ta,Nb)2O6F |
ⓘ | Oxycalciomicrolite | 4.DH.15 | Ca2Ta2O6O |
Group 9 - Silicates | |||
ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
ⓘ | Bertrandite | 9.BD.05 | Be4(Si2O7)(OH)2 |
ⓘ | Beryl var. Aquamarine | 9.CJ.05 | Be3Al2Si6O18 |
ⓘ | 9.CJ.05 | Be3Al2(Si6O18) | |
ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
Unclassified | |||
ⓘ | 'K Feldspar' | - |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Be | Beryllium | |
Be | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
Be | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
Be | ⓘ Beryl | Be3Al2(Si6O18) |
B | Boron | |
B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
O | Oxygen | |
O | ⓘ Albite | Na(AlSi3O8) |
O | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
O | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
O | ⓘ Beryl | Be3Al2(Si6O18) |
O | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
O | ⓘ Tantalite-(Mn) | Mn2+Ta2O6 |
O | ⓘ Microcline | K(AlSi3O8) |
O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
O | ⓘ Quartz | SiO2 |
O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
O | ⓘ Zircon | Zr(SiO4) |
O | ⓘ Fluorcalciomicrolite | (Ca,Na)2(Ta,Nb)2O6F |
O | ⓘ Oxycalciomicrolite | Ca2Ta2O6O |
F | Fluorine | |
F | ⓘ Fluorcalciomicrolite | (Ca,Na)2(Ta,Nb)2O6F |
Na | Sodium | |
Na | ⓘ Albite | Na(AlSi3O8) |
Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Na | ⓘ Fluorcalciomicrolite | (Ca,Na)2(Ta,Nb)2O6F |
Al | Aluminium | |
Al | ⓘ Albite | Na(AlSi3O8) |
Al | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
Al | ⓘ Beryl | Be3Al2(Si6O18) |
Al | ⓘ Microcline | K(AlSi3O8) |
Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Si | Silicon | |
Si | ⓘ Albite | Na(AlSi3O8) |
Si | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
Si | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
Si | ⓘ Beryl | Be3Al2(Si6O18) |
Si | ⓘ Microcline | K(AlSi3O8) |
Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Si | ⓘ Quartz | SiO2 |
Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Si | ⓘ Zircon | Zr(SiO4) |
K | Potassium | |
K | ⓘ Microcline | K(AlSi3O8) |
K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Ca | Calcium | |
Ca | ⓘ Fluorcalciomicrolite | (Ca,Na)2(Ta,Nb)2O6F |
Ca | ⓘ Oxycalciomicrolite | Ca2Ta2O6O |
Mn | Manganese | |
Mn | ⓘ Tantalite-(Mn) | Mn2+Ta2O6 |
Fe | Iron | |
Fe | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Zr | Zirconium | |
Zr | ⓘ Zircon | Zr(SiO4) |
Nb | Niobium | |
Nb | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
Nb | ⓘ Fluorcalciomicrolite | (Ca,Na)2(Ta,Nb)2O6F |
Ta | Tantalum | |
Ta | ⓘ Tantalite-(Mn) | Mn2+Ta2O6 |
Ta | ⓘ Microlite Group | A2-mTa2X6-wZ-n |
Ta | ⓘ Fluorcalciomicrolite | (Ca,Na)2(Ta,Nb)2O6F |
Ta | ⓘ Oxycalciomicrolite | Ca2Ta2O6O |
Other Regions, Features and Areas containing this locality
Brazil
- Minas Gerais
- Governador Valadares
- Golconda pegmatite fieldPegmatite Field
- Governador Valadares
South AmericaContinent
South America PlateTectonic Plate
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