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Morro da Mina mine, Conselheiro Lafaiete, Minas Gerais, Brazili
Regional Level Types
Morro da Mina mineMine
Conselheiro LafaieteCity
Minas GeraisState
BrazilCountry

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Latitude & Longitude (WGS84):
20° 36' 0'' South , 43° 46' 59'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Conselheiro Lafaiete111,596 (2012)6.7km
Ouro Branco26,687 (2014)12.5km
Congonhas48,819 (2014)13.1km
Ouro Preto63,678 (2012)36.9km
Itabirito39,452 (2012)38.6km
Other/historical names associated with this locality:
Morro da Mina mine, Queluz de Minas
Name(s) in local language(s):
Morro da Mina


Gondites and queluzites, the metamorphosed manganese protores, are regularly distributed in the Greenstone Belt, occupying narrow and elongated zones in the metabasaltic and metaultrabasic parts. These protores were cut by granodioritic bodies, pegmatitic and aplitic veins and faults. (from Mineralienatlas)

A sedimentary assemblage originally belonging to a metamorphosed greenstone sequence. The depositional setting is interpreted as within a bowl of the ocean floor, and evolved from a divergent margin with a volcanogenic contribution, and then later subject to sedimentary processes; mainly flows and chemical sedimentation turbidites.

Ores are rhodochrosite, and spessartine and rhodonite. Gangue minerals are quartz, huntite, annite, phlogopite, clinochlore, and rutile (all unconfirmed).

Conselheiro Lafaiete was formely named Queluz de Minas.

Regions containing this locality

South America PlateTectonic Plate
South AmericaContinent

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


31 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Alabandite
Formula: MnS
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Bementite
Formula: Mn7Si6O15(OH)8
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Beryl
Formula: Be3Al2(Si6O18)
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Bornite
Formula: Cu5FeS4
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Cassiterite
Formula: SnO2
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Chalcopyrite
Formula: CuFeS2
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
'Chlorite Group'
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Clino-suenoite
Formula: □{Mn2+2}{Mg5}(Si8O22)(OH)2
Reference: M. A. F. Candia (1979) The Lafaiete Formation at Morro da Mina, Lafaiete District, Minas Gerais: Metamorfic Aspects. BoI. IG, V.10: 19-30.
'Columbite-(Fe)-Columbite-(Mn) Series'
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Covellite
Formula: CuS
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Cummingtonite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Fluorapatite
Formula: Ca5(PO4)3F
Fluorapatite var: Mn-bearing Fluorapatite
Formula: (Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Graphite
Formula: C
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
'Hornblende'
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Kutnohorite
Formula: CaMn2+(CO3)2
Reference: Cornejo, C; Bartorelli, A. 2010. Minerais e pedras preciosas do Brasil, São Paulo, Solaris Edições Culturais, 442p.
Lithiophorite
Formula: (Al,Li)MnO2(OH)2
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Manganosite
Formula: MnO
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Neotocite
Formula: (Mn,Fe,Mg)SiO3 · H2O
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Nsutite
Formula: (Mn4+,Mn2+)(O,OH)2
Reference: Zwicker, W.K. et al (1962) Nsutite - a widespread manganese oxide mineral. American Mineralogist, 47, 246-266.
Pyrite
Formula: FeS2
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Pyrolusite
Formula: Mn4+O2
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Pyroxmangite
Formula: MnSiO3
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Pyrrhotite
Formula: Fe7S8
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Quartz
Formula: SiO2
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Quartz var: Chalcedony
Formula: SiO2
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Rhodochrosite
Formula: MnCO3
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 174; http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Rhodonite
Formula: Mn2+SiO3
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Siegenite
Formula: CoNi2S4
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Sauer, J.R. (1982) Brazil, Paradise of Gemstones. Gemological Institute of America, 135 pp. (p. 108). http://acd.ufrj.br/geologia/posgrad/area1_d.htm [Link dead May 2019]
Talc
Formula: Mg3Si4O10(OH)2
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Tephroite
Formula: Mn2+2SiO4
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
Todorokite
Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: http://acd.ufrj.br/geologia/posgrad/area1_d.htm

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Alabandite2.CD.10MnS
Bornite2.BA.15Cu5FeS4
Chalcopyrite2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Siegenite2.DA.05CoNi2S4
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Cryptomelane4.DK.05aK(Mn4+7Mn3+)O16
Lithiophorite4.FE.25(Al,Li)MnO2(OH)2
Manganosite4.AB.25MnO
Nsutite4.DB.15c(Mn4+,Mn2+)(O,OH)2
Pyrolusite4.DB.05Mn4+O2
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Todorokite4.DK.10(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Group 5 - Nitrates and Carbonates
Kutnohorite5.AB.10CaMn2+(CO3)2
Rhodochrosite5.AB.05MnCO3
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
var: Mn-bearing Fluorapatite8.BN.05(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Bementite9.EE.05Mn7Si6O15(OH)8
Beryl9.CJ.05Be3Al2(Si6O18)
Clino-suenoite9.DE.□{Mn2+2}{Mg5}(Si8O22)(OH)2
Cummingtonite9.DE.05☐{Mg2}{Mg5}(Si8O22)(OH)2
Neotocite9.ED.20(Mn,Fe,Mg)SiO3 · H2O
Pyroxmangite9.DO.05MnSiO3
Rhodonite9.DK.05Mn2+SiO3
Riebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Talc9.EC.05Mg3Si4O10(OH)2
Tephroite9.AC.05Mn2+2SiO4
Unclassified Minerals, Rocks, etc.
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Chlorite Group'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Alabandite2.8.1.4MnS
Covellite2.8.12.1CuS
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 3:4
Siegenite2.10.1.6CoNi2S4
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
AX
Manganosite4.2.1.3MnO
AX2
Cassiterite4.4.1.5SnO2
Nsutite4.4.8.1(Mn4+,Mn2+)(O,OH)2
Pyrolusite4.4.1.4Mn4+O2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
Miscellaneous
Lithiophorite6.4.1.1(Al,Li)MnO2(OH)2
Group 7 - MULTIPLE OXIDES
AB3X7
Todorokite7.8.1.1(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
AB8X16
Cryptomelane7.9.1.2K(Mn4+7Mn3+)O16
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Rhodochrosite14.1.1.4MnCO3
AB(XO3)2
Kutnohorite14.2.1.3CaMn2+(CO3)2
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Tephroite51.3.1.4Mn2+2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=5
Rhodonite65.4.1.1Mn2+SiO3
Single-Width Unbranched Chains, W=1 with chains P=7
Pyroxmangite65.6.1.1MnSiO3
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Cummingtonite66.1.1.1☐{Mg2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Neotocite71.1.5.4(Mn,Fe,Mg)SiO3 · H2O
Sheets of 6-membered rings with 2:1 layers
Talc71.2.1.3Mg3Si4O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 78 - Unclassified Silicates
Bementite78.5.2.1Mn7Si6O15(OH)8
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Chlorite Group'-
Clino-suenoite-□{Mn2+2}{Mg5}(Si8O22)(OH)2
'Columbite-(Fe)-Columbite-(Mn) Series'-
Fluorapatite
var: Mn-bearing Fluorapatite
-(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
'Garnet Group'-X3Z2(SiO4)3
'Hornblende'-
Quartz
var: Chalcedony
-SiO2
Riebeckite-◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H TalcMg3Si4O10(OH)2
H Neotocite(Mn,Fe,Mg)SiO3 · H2O
H BementiteMn7Si6O15(OH)8
H Lithiophorite(Al,Li)MnO2(OH)2
H Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H Fluorapatite (var: Mn-bearing Fluorapatite)(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
H Cummingtonite☐{Mg2}{Mg5}(Si8O22)(OH)2
H Nsutite(Mn4+,Mn2+)(O,OH)2
H Clino-suenoite□{Mn22+}{Mg5}(Si8O22)(OH)2
LiLithium
Li Lithiophorite(Al,Li)MnO2(OH)2
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
CCarbon
C RhodochrositeMnCO3
C GraphiteC
C KutnohoriteCaMn2+(CO3)2
OOxygen
O QuartzSiO2
O RhodoniteMn2+SiO3
O SpessartineMn32+Al2(SiO4)3
O TephroiteMn22+SiO4
O RhodochrositeMnCO3
O TalcMg3Si4O10(OH)2
O PyroxmangiteMnSiO3
O Neotocite(Mn,Fe,Mg)SiO3 · H2O
O BementiteMn7Si6O15(OH)8
O Quartz (var: Chalcedony)SiO2
O CryptomelaneK(Mn74+Mn3+)O16
O PyrolusiteMn4+O2
O Lithiophorite(Al,Li)MnO2(OH)2
O ManganositeMnO
O Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
O BerylBe3Al2(Si6O18)
O CassiteriteSnO2
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O Garnet GroupX3Z2(SiO4)3
O Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O Fluorapatite (var: Mn-bearing Fluorapatite)(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
O Cummingtonite☐{Mg2}{Mg5}(Si8O22)(OH)2
O Nsutite(Mn4+,Mn2+)(O,OH)2
O Clino-suenoite□{Mn22+}{Mg5}(Si8O22)(OH)2
O KutnohoriteCaMn2+(CO3)2
O FluorapatiteCa5(PO4)3F
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
F Fluorapatite (var: Mn-bearing Fluorapatite)(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
F FluorapatiteCa5(PO4)3F
NaSodium
Na Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Na Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
MgMagnesium
Mg TalcMg3Si4O10(OH)2
Mg Neotocite(Mn,Fe,Mg)SiO3 · H2O
Mg Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Mg Cummingtonite☐{Mg2}{Mg5}(Si8O22)(OH)2
Mg Clino-suenoite□{Mn22+}{Mg5}(Si8O22)(OH)2
AlAluminium
Al SpessartineMn32+Al2(SiO4)3
Al Lithiophorite(Al,Li)MnO2(OH)2
Al Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Al BerylBe3Al2(Si6O18)
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
SiSilicon
Si QuartzSiO2
Si RhodoniteMn2+SiO3
Si SpessartineMn32+Al2(SiO4)3
Si TephroiteMn22+SiO4
Si TalcMg3Si4O10(OH)2
Si PyroxmangiteMnSiO3
Si Neotocite(Mn,Fe,Mg)SiO3 · H2O
Si BementiteMn7Si6O15(OH)8
Si Quartz (var: Chalcedony)SiO2
Si BerylBe3Al2(Si6O18)
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si Garnet GroupX3Z2(SiO4)3
Si Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si Cummingtonite☐{Mg2}{Mg5}(Si8O22)(OH)2
Si Clino-suenoite□{Mn22+}{Mg5}(Si8O22)(OH)2
PPhosphorus
P Fluorapatite (var: Mn-bearing Fluorapatite)(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
P FluorapatiteCa5(PO4)3F
SSulfur
S PyriteFeS2
S ChalcopyriteCuFeS2
S PyrrhotiteFe7S8
S CovelliteCuS
S BorniteCu5FeS4
S SiegeniteCoNi2S4
S AlabanditeMnS
ClChlorine
Cl Fluorapatite (var: Mn-bearing Fluorapatite)(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
KPotassium
K CryptomelaneK(Mn74+Mn3+)O16
K Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
CaCalcium
Ca Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca Fluorapatite (var: Mn-bearing Fluorapatite)(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Ca KutnohoriteCaMn2+(CO3)2
Ca FluorapatiteCa5(PO4)3F
MnManganese
Mn RhodoniteMn2+SiO3
Mn SpessartineMn32+Al2(SiO4)3
Mn TephroiteMn22+SiO4
Mn RhodochrositeMnCO3
Mn PyroxmangiteMnSiO3
Mn Neotocite(Mn,Fe,Mg)SiO3 · H2O
Mn BementiteMn7Si6O15(OH)8
Mn AlabanditeMnS
Mn CryptomelaneK(Mn74+Mn3+)O16
Mn PyrolusiteMn4+O2
Mn Lithiophorite(Al,Li)MnO2(OH)2
Mn ManganositeMnO
Mn Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Mn Fluorapatite (var: Mn-bearing Fluorapatite)(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Mn Nsutite(Mn4+,Mn2+)(O,OH)2
Mn Clino-suenoite□{Mn22+}{Mg5}(Si8O22)(OH)2
Mn KutnohoriteCaMn2+(CO3)2
FeIron
Fe Neotocite(Mn,Fe,Mg)SiO3 · H2O
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe PyrrhotiteFe7S8
Fe BorniteCu5FeS4
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
CoCobalt
Co SiegeniteCoNi2S4
NiNickel
Ni SiegeniteCoNi2S4
CuCopper
Cu ChalcopyriteCuFeS2
Cu CovelliteCuS
Cu BorniteCu5FeS4
SrStrontium
Sr Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
SnTin
Sn CassiteriteSnO2
BaBarium
Ba Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O

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

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Sauer, J.R. (1982) Brazil, Paradise of Gemstones. Gemological Institute of America, 135 pp. (p. 108).
USGS (2005) Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10230798 & 10024441.
Leverett, P., Williams, P., and Hibbs, D. (2008) Ca-Mg-Fe rich Rhodonite from the Morro da Mina Mine, Conselheiro Lafaiete, Minas Gerais, Brazil. Mineralogical Record 39, 125-130.
Hyrsl, J., Scholz, R., and Romano, A. (2012) Der Morro da Mina in Conselheiro Lafaiete, Brasilien. Mineralien-Welt, 23(4), 12-19 (in German).

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