Córrego Frio mine, Linópolis, Divino das Laranjeiras, Minas Gerais, Brazili
Regional Level Types | |
---|---|
Córrego Frio mine | Mine (Inactive) |
Linópolis | Town |
Divino das Laranjeiras | Municipality |
Minas Gerais | State |
Brazil | Country |
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Latitude & Longitude (WGS84):
18° 40' 9'' South , 41° 28' 13'' West
Latitude & Longitude (decimal):
Type:
Mine (Inactive) - last checked 2024
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Divino das Laranjeiras | 9,058 (2012) | 12.1km |
Mantenópolis | 8,547 (2012) | 42.4km |
Governador Valadares | 250,878 (2012) | 54.3km |
Mindat Locality ID:
421
Long-form identifier:
mindat:1:2:421:2
GUID (UUID V4):
f9cecafc-c83b-47fc-9b83-686910c3731c
Other Languages:
Spanish:
Duquinho; Cabeceiras do Laranjal; Lavra da Brasilianita; Velha da Brasilianita; Jaõ Firmino, Minas Gerais, Brasil
A granite pegmatite 6 kilometres northwest of the village of Linópolis, east of Governador Valadares. Located close to the border of Divino das Laranjeiras and Mendes Pimentel municipalities. Various names have been applied to this locality.
Aimorés pegmatite district, Eastern Brazilian pegmatite province.
Type locality for Brazilianite, see Cassedanne (1983) and also discussion at https://www.mindat.org/mesg-199894.html
Mine Information: Originally developed as an open-pit mine a year after discovering a gemmy mineral in 1942, which was later (in 1945) determined to be brazilianite. The cleavability and softness were thought to be the result of weathering, so 2 short exploratory adits were driven.
In late 1944, E.R. Swoboda, an American mineral dealer, aware of the rarity of the crystals, obtained a lease on the locality and supervised the additional excavation of the pegmatite, providing the United States Geological Survey with a number of fine specimens for their use.
Geology: Eastern Minas Gerais is for the most part underlain by Precambrian dark-coloured schists and gneisses, light-coloured granitoid gneisses, and sericitic quartzites. Locally, the pegmatite strikes approximately east-west, dips steeply to the north, and is a tabular mass essentially in alignment with the schistosity of the hosting biotite-garnet schist. Its thickness ranges from 3 meters at the surface to 1.5 meters in the lower crosscut adit.
Texturally and compositionally, the pegmatite can be subdivided into three units working in a massive border zone (massive albite with minor quartz and muscovite), a crystal cavity zone, and a quartz lens.
The border zone contains thin, elongate, blue-green masses of scorzalite and souzalite, up to 25 cm long, extending across the zone normal to the contact.
The cavity zone is characterized by irregular vugs and crystal cavities bordered by stubby, terminated quartz crystals, well-formed brazilianite crystals, and rhomboid masses of limonite-stained muscovite. Cleavelandite and porous and massive albite all occur in this zone, and in general, a higher proportion of quartz and muscovite occur here.
The quartz zone was mined out by 1947.
Albite, muscovite, and quartz make up more than 99 percent of the pegmatite. Six phosphate minerals are present including scorzalite and souzalite, brazilianite, blue-green apatite, and two unidentified [as of 1947] phosphates. Tapiolite and zircon are rare accessory minerals. Beryl and tourmaline, found in the stream bed below the pegmatite, were not observed in the exposed parts of the pegmatite.
As is true for many of the regional pegmatites, a well-defined contact with schist and the texture of the border facies support the hypothesis of intrusion of a magmatic fluid which consolidated from border to centre after emplacement.
Massive albite is characteristic of the early stage of pegmatite consolidation, whereas cleavelandite has formed in the late stage. Scorzalite, souzalite, and apatite are intermixed with massive albite in the border zone and are included by crystals of brazilianite and quartz in the crystal cavity zone. Shell-like intergrowths of apatite and massive albite in the outer margin of the crystal cavity zone indicate that apatite began to form near the end of massive albite formation.
The field relations support the hypothesis of continuous crystallization from a magmatic to an autohydrothermal stage.
Geologic Plan and Section, Córrego Frio Mine
Córrego Frio mine, Linópolis, Divino das Laranjeiras, Minas Gerais, Brazil
Córrego Frio mine, Linópolis, Divino das Laranjeiras, Minas Gerais, Brazil
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
20 valid minerals. 3 (TL) - type locality of valid minerals. 1 erroneous literature entry.
Detailed Mineral List:
ⓘ Albite Formula: Na(AlSi3O8) Habit: large masses; saccharoidal aggregates and bladed crystals |
ⓘ Albite var. Cleavelandite Formula: Na(AlSi3O8) |
ⓘ Arsenopyrite Formula: FeAsS |
ⓘ Beraunite Formula: Fe3+6(PO4)4O(OH)4 · 6H2O |
✪ Brazilianite (TL) Formula: NaAl3(PO4)2(OH)4 Type Locality: Habit: Narrow prism zone and elongated along [100] Colour: pale to deep greenish yellow; Golden yellow Description: largest crystal found weighed 2 kg |
ⓘ Childrenite Formula: Fe2+Al(PO4)(OH)2 · H2O Habit: needles up to 1 cm Description: In feldspar vugs or in phospate nodules |
ⓘ Dufrénite Formula: Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O Habit: Thin botryoidal coatings Description: in feldspar cavities |
ⓘ Fluorapatite Formula: Ca5(PO4)3F |
ⓘ Frondelite Formula: Mn2+Fe3+4(PO4)3(OH)5 Habit: radiating nodules Colour: a yellowish greenish brown color |
ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
ⓘ Formula: CaBe(PO4)F Description: Leavens, P. et al, Compositional and Refractive Index Variations of the Herderite-Hydroxyl-herderite Series, Am Min v63, p 913-917 (1978) reported that in all the world, they could find only one true herderite specimen and that was a faceted gemstone. |
ⓘ Hydroxylherderite Formula: CaBe(PO4)(OH) |
ⓘ 'Jahnsite Group' Formula: XM1M22M32(H2O)8(OH)2(PO4)4 Habit: waxy finegrained rims on other phospate minerals Colour: pale yellowish gray to orange |
ⓘ Microcline Formula: K(AlSi3O8) Description: as pink cores in albite |
ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Habit: books Colour: Goldenbrown |
ⓘ Quartz Formula: SiO2 |
ⓘ Roscherite Formula: Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O |
ⓘ Sabugalite Formula: HAl(UO2)4(PO4)4 · 16H2O Habit: spots in scorzalite Colour: pale yellow |
ⓘ Scorzalite (TL) Formula: Fe2+Al2(PO4)2(OH)2 Type Locality: Habit: patches to a few cm Colour: pale blue to ultramarine-blue Description: Alters to a mixture of limonite and jahnsite |
ⓘ Souzalite (TL) Formula: (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O Type Locality: Habit: Subparallell needles; bundles Colour: lustrous or submetallic bluish green color Description: Very rare samples up to 10 cm were collected in 1978 (Cassedanne 1983) |
ⓘ Strunzite Formula: Mn2+Fe3+2(PO4)2(OH)2 · 6H2O Habit: clusters of flexible fibers |
ⓘ 'Tapiolite' Formula: (Fe,Mn)(Ta,Nb)2O6 Habit: Striated tabular crystals up to 1 cm in length |
ⓘ 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z Habit: Sparays of small needles; black fractured crystals Colour: green, black |
ⓘ Uraninite Formula: UO2 Habit: small crystals Description: embedded in muscovite |
ⓘ Wyllieite Formula: (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3 |
ⓘ Zircon Formula: Zr(SiO4) Habit: small crystals Colour: colorless to purplish gray Description: in muscovite |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Quartz | 4.DA.05 | SiO2 |
ⓘ | Uraninite | 4.DL.05 | UO2 |
Group 8 - Phosphates, Arsenates and Vanadates | |||
ⓘ | Wyllieite | 8.AC.15 | (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3 |
ⓘ | Herderite ? | 8.BA.10 | CaBe(PO4)F |
ⓘ | Hydroxylherderite | 8.BA.10 | CaBe(PO4)(OH) |
ⓘ | Scorzalite (TL) | 8.BB.40 | Fe2+Al2(PO4)2(OH)2 |
ⓘ | Frondelite | 8.BC.10 | Mn2+Fe3+4(PO4)3(OH)5 |
ⓘ | Brazilianite (TL) | 8.BK.05 | NaAl3(PO4)2(OH)4 |
ⓘ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
ⓘ | Roscherite | 8.DA.10 | Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O |
ⓘ | Strunzite | 8.DC.25 | Mn2+Fe3+2(PO4)2(OH)2 · 6H2O |
ⓘ | Beraunite | 8.DC.27 | Fe3+6(PO4)4O(OH)4 · 6H2O |
ⓘ | Souzalite (TL) | 8.DC.45 | (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O |
ⓘ | Childrenite | 8.DD.20 | Fe2+Al(PO4)(OH)2 · H2O |
ⓘ | Dufrénite | 8.DK.15 | Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O |
ⓘ | Sabugalite | 8.EB.55 | HAl(UO2)4(PO4)4 · 16H2O |
Group 9 - Silicates | |||
ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
ⓘ | Albite var. Cleavelandite | 9.FA.35 | Na(AlSi3O8) |
ⓘ | 9.FA.35 | Na(AlSi3O8) | |
Unclassified | |||
ⓘ | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
ⓘ | 'Tapiolite' | - | (Fe,Mn)(Ta,Nb)2O6 |
ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
ⓘ | 'Jahnsite Group' | - | XM1M22M32(H2O)8(OH)2(PO4)4 |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
H | ⓘ Brazilianite | NaAl3(PO4)2(OH)4 |
H | ⓘ Childrenite | Fe2+Al(PO4)(OH)2 · H2O |
H | ⓘ Dufrénite | Ca0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O |
H | ⓘ Frondelite | Mn2+Fe43+(PO4)3(OH)5 |
H | ⓘ Hydroxylherderite | CaBe(PO4)(OH) |
H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
H | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
H | ⓘ Sabugalite | HAl(UO2)4(PO4)4 · 16H2O |
H | ⓘ Scorzalite | Fe2+Al2(PO4)2(OH)2 |
H | ⓘ Souzalite | (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O |
H | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
H | ⓘ Jahnsite Group | XM1M22M32(H2O)8(OH)2(PO4)4 |
Be | Beryllium | |
Be | ⓘ Herderite | CaBe(PO4)F |
Be | ⓘ Hydroxylherderite | CaBe(PO4)(OH) |
Be | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
B | Boron | |
B | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
O | Oxygen | |
O | ⓘ Albite | Na(AlSi3O8) |
O | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
O | ⓘ Brazilianite | NaAl3(PO4)2(OH)4 |
O | ⓘ Childrenite | Fe2+Al(PO4)(OH)2 · H2O |
O | ⓘ Dufrénite | Ca0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O |
O | ⓘ Fluorapatite | Ca5(PO4)3F |
O | ⓘ Frondelite | Mn2+Fe43+(PO4)3(OH)5 |
O | ⓘ Herderite | CaBe(PO4)F |
O | ⓘ Hydroxylherderite | CaBe(PO4)(OH) |
O | ⓘ Microcline | K(AlSi3O8) |
O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
O | ⓘ Quartz | SiO2 |
O | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
O | ⓘ Sabugalite | HAl(UO2)4(PO4)4 · 16H2O |
O | ⓘ Scorzalite | Fe2+Al2(PO4)2(OH)2 |
O | ⓘ Souzalite | (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O |
O | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
O | ⓘ Tapiolite | (Fe,Mn)(Ta,Nb)2O6 |
O | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
O | ⓘ Uraninite | UO2 |
O | ⓘ Wyllieite | (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3 |
O | ⓘ Zircon | Zr(SiO4) |
O | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
O | ⓘ Garnet Group | X3Z2(SiO4)3 |
O | ⓘ Jahnsite Group | XM1M22M32(H2O)8(OH)2(PO4)4 |
F | Fluorine | |
F | ⓘ Fluorapatite | Ca5(PO4)3F |
F | ⓘ Herderite | CaBe(PO4)F |
Na | Sodium | |
Na | ⓘ Albite | Na(AlSi3O8) |
Na | ⓘ Brazilianite | NaAl3(PO4)2(OH)4 |
Na | ⓘ Wyllieite | (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3 |
Na | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
Mg | Magnesium | |
Mg | ⓘ Souzalite | (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O |
Mg | ⓘ Wyllieite | (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3 |
Al | Aluminium | |
Al | ⓘ Albite | Na(AlSi3O8) |
Al | ⓘ Brazilianite | NaAl3(PO4)2(OH)4 |
Al | ⓘ Childrenite | Fe2+Al(PO4)(OH)2 · H2O |
Al | ⓘ Microcline | K(AlSi3O8) |
Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Al | ⓘ Sabugalite | HAl(UO2)4(PO4)4 · 16H2O |
Al | ⓘ Scorzalite | Fe2+Al2(PO4)2(OH)2 |
Al | ⓘ Souzalite | (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O |
Al | ⓘ Wyllieite | (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3 |
Al | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
Si | Silicon | |
Si | ⓘ Albite | Na(AlSi3O8) |
Si | ⓘ Microcline | K(AlSi3O8) |
Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Si | ⓘ Quartz | SiO2 |
Si | ⓘ Zircon | Zr(SiO4) |
Si | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
P | Phosphorus | |
P | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
P | ⓘ Brazilianite | NaAl3(PO4)2(OH)4 |
P | ⓘ Childrenite | Fe2+Al(PO4)(OH)2 · H2O |
P | ⓘ Dufrénite | Ca0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O |
P | ⓘ Fluorapatite | Ca5(PO4)3F |
P | ⓘ Frondelite | Mn2+Fe43+(PO4)3(OH)5 |
P | ⓘ Herderite | CaBe(PO4)F |
P | ⓘ Hydroxylherderite | CaBe(PO4)(OH) |
P | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
P | ⓘ Sabugalite | HAl(UO2)4(PO4)4 · 16H2O |
P | ⓘ Scorzalite | Fe2+Al2(PO4)2(OH)2 |
P | ⓘ Souzalite | (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O |
P | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
P | ⓘ Wyllieite | (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3 |
P | ⓘ Jahnsite Group | XM1M22M32(H2O)8(OH)2(PO4)4 |
S | Sulfur | |
S | ⓘ Arsenopyrite | FeAsS |
K | Potassium | |
K | ⓘ Microcline | K(AlSi3O8) |
K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Ca | Calcium | |
Ca | ⓘ Dufrénite | Ca0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O |
Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
Ca | ⓘ Herderite | CaBe(PO4)F |
Ca | ⓘ Hydroxylherderite | CaBe(PO4)(OH) |
Ca | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
Ca | ⓘ Wyllieite | (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3 |
Mn | Manganese | |
Mn | ⓘ Frondelite | Mn2+Fe43+(PO4)3(OH)5 |
Mn | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
Mn | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
Mn | ⓘ Tapiolite | (Fe,Mn)(Ta,Nb)2O6 |
Mn | ⓘ Wyllieite | (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3 |
Fe | Iron | |
Fe | ⓘ Arsenopyrite | FeAsS |
Fe | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
Fe | ⓘ Childrenite | Fe2+Al(PO4)(OH)2 · H2O |
Fe | ⓘ Dufrénite | Ca0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O |
Fe | ⓘ Frondelite | Mn2+Fe43+(PO4)3(OH)5 |
Fe | ⓘ Scorzalite | Fe2+Al2(PO4)2(OH)2 |
Fe | ⓘ Souzalite | (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O |
Fe | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
Fe | ⓘ Tapiolite | (Fe,Mn)(Ta,Nb)2O6 |
Fe | ⓘ Wyllieite | (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3 |
As | Arsenic | |
As | ⓘ Arsenopyrite | FeAsS |
Zr | Zirconium | |
Zr | ⓘ Zircon | Zr(SiO4) |
Nb | Niobium | |
Nb | ⓘ Tapiolite | (Fe,Mn)(Ta,Nb)2O6 |
Ta | Tantalum | |
Ta | ⓘ Tapiolite | (Fe,Mn)(Ta,Nb)2O6 |
U | Uranium | |
U | ⓘ Sabugalite | HAl(UO2)4(PO4)4 · 16H2O |
U | ⓘ Uraninite | UO2 |
Other Regions, Features and Areas containing this locality
South AmericaContinent
South America PlateTectonic Plate
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Córrego Frio mine, Linópolis, Divino das Laranjeiras, Minas Gerais, Brazil