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Belmont mine, Itabira, Minas Gerais, Brazili
Regional Level Types
Belmont mineMine
Itabira- not defined -
Minas Gerais- not defined -
BrazilCountry

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Key
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Latitude & Longitude (WGS84): 19° 40' 27'' South , 43° 7' 32'' West
Latitude & Longitude (decimal): -19.67417,-43.12556
GeoHash:G#: 7h924dkvt
Locality type:Mine
Köppen climate type:Cwa : Monsoon-influenced humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Itabira99,496 (2012)12.2km
Nova Era15,595 (2012)12.5km
João Monlevade72,762 (2012)15.9km
São Domingos do Prata9,466 (2012)26.8km
Rio Piracicaba10,439 (2012)28.8km


Emerald mine in mica-rich rocks.

Regions containing this locality

South America PlateTectonic Plate
South AmericaContinent
Iron Quadrangle, Minas Gerais, BrazilQuadrangle

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


9 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
'Albite-Anorthite Series'
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
'Apatite'
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Beryl
Formula: Be3Al2(Si6O18)
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Beryl var: Emerald
Formula: Be3Al2(Si6O18)
Reference: Giuliani, Gaston; Cheilletz, Alain; Zimmermann, Jean-Louis; Ribeiro-Althoff, Ana Maria; France-Lanord, Christian; Feraud, Gilbert (1997): Brazilian emerald deposits: genesis and topology. Chronique de la Recherche Minière, 65, 17-61.; Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
'Chlorite Group'
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Chromite
Formula: Fe2+Cr3+2O4
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Chrysoberyl
Formula: BeAl2O4
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
'K Feldspar'
Reference: Morteani, G., Preinfalk, C., and Horn, A.H. (2000): Mineralium Deposita 35, 638-655.
Molybdenite
Formula: MoS2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Morteani, G., Preinfalk, C., and Horn, A.H. (2000): Mineralium Deposita 35, 638-655.
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Pyrite
Formula: FeS2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
Quartz
Formula: SiO2
Reference: Emeralds of the World English extraLapis Vol. 2 2002 pp24-35

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Chrysoberyl4.BA.05BeAl2O4
Quartz4.DA.05SiO2
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
var: Aquamarine9.CJ.05Be3Al2Si6O18
var: Emerald9.CJ.05Be3Al2(Si6O18)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Apatite'-
'Chlorite Group'-
'K Feldspar'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Chrysoberyl7.2.9.1BeAl2O4
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Albite-Anorthite Series'-
'Apatite'-
Beryl
var: Aquamarine
-Be3Al2Si6O18
var: Emerald-Be3Al2(Si6O18)
'Chlorite Group'-
'K Feldspar'-

List of minerals for each chemical element

HHydrogen
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
BeBeryllium
Be Beryl (var: Emerald)Be3Al2(Si6O18)
Be Beryl (var: Aquamarine)Be3Al2Si6O18
Be ChrysoberylBeAl2O4
Be BerylBe3Al2(Si6O18)
OOxygen
O Beryl (var: Emerald)Be3Al2(Si6O18)
O PhlogopiteKMg3(AlSi3O10)(OH)2
O Beryl (var: Aquamarine)Be3Al2Si6O18
O ChrysoberylBeAl2O4
O QuartzSiO2
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O ChromiteFe2+Cr23+O4
O MuscoviteKAl2(AlSi3O10)(OH)2
O BerylBe3Al2(Si6O18)
MgMagnesium
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
AlAluminium
Al Beryl (var: Emerald)Be3Al2(Si6O18)
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al Beryl (var: Aquamarine)Be3Al2Si6O18
Al ChrysoberylBeAl2O4
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al BerylBe3Al2(Si6O18)
SiSilicon
Si Beryl (var: Emerald)Be3Al2(Si6O18)
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si Beryl (var: Aquamarine)Be3Al2Si6O18
Si QuartzSiO2
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si BerylBe3Al2(Si6O18)
SSulfur
S MolybdeniteMoS2
S PyriteFeS2
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe ChromiteFe2+Cr23+O4
Fe PyriteFeS2
MoMolybdenum
Mo MolybdeniteMoS2

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Archean
2500 - 4000 Ma



ID: 3186992
Archean crystalline metamorphic rocks

Age: Archean (2500 - 4000 Ma)

Lithology: Medium-high grade orthogneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Giuliani, Gaston; Cheilletz, Alain; Zimmermann, Jean-Louis; Ribeiro-Althoff, Ana Maria; France-Lanord, Christian; Feraud, Gilbert (1997): Brazilian emerald deposits: genesis and topology. Chronique de la Recherche Minière, 65, 17-61.
Morteani, G., Preinfalk, C., and Horn, A.H. (2000): Classification and mineralization potential of the pegmatites of the Eastern Brazilian Pegmatite Province. Mineralium Deposita 35, 638-655.
Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Emerald deposits and occurrences: A review. Ore Geology Reviews 34, 87-112.

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