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Pedra Balão outcrops, Poços de Caldas, Poços de Caldas alkaline complex, Minas Gerais, Brazili
Regional Level Types
Pedra Balão outcropsGroup of Outcrops
Poços de Caldas- not defined -
Poços de Caldas alkaline complexComplex
Minas GeraisState
BrazilCountry

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Key
Latitude & Longitude (WGS84):
21° 45' 39'' South , 46° 33' 23'' West
Latitude & Longitude (decimal):
Locality type:
Group of Outcrops
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Poços de Caldas146,588 (2017)3.0km
Botelhos11,072 (2012)21.9km
Caconde12,434 (2012)27.3km
Campestre11,802 (2012)32.5km
São João da Boa Vista76,540 (2012)34.0km


Northern edge ("Anel Norte") of the Poços de Caldas alkaline complex.
Khibinite-lujavrite bodies.
It is a very peculiar place with a few large spherical boulders of lujavrite, hence the name Pedra Balão (= Ball rocks). Protected in 1996 as a tourist attraction for Pocos de Caldas. The presence of these large boulders at fairly high elevation and without any other exposed rocks in the immediate area is not readily explainable. Minerals samples come from the surrounding area - up to 900m around the main outcrops.

Pedra Balão is the type locality of manganoeudialyte.

Note to minerallist:
Both manganoeudialyte and eudialyte occur in khibinite at this locality; only chemical analysis can distinguish between the two.
Manganoeudialyte has only been found at the locality from one specific area (where it usually occurs together with lamprophyllite). Eudialyte, by far the most common mineral from the group in the location, has been found in all kind of rocks, also including light colored khibinites (light pink Eudialytes, without lamprophyllite). Reynaldo Contreira information 24.08.2014
Lamprophyllite from the region may contain some F but far below Fluorlamprophyllite limits.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


12 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

Aegirine
Formula: NaFe3+Si2O6
Reference: Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V. and Karipidis, T.K. (2010): Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139(4), 35-47.
Analcime
Formula: Na(AlSi2O6) · H2O
Reference: Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V. and Karipidis, T.K. (2010): Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139 (4), 35-47..
Astrophyllite
Formula: K2NaFe2+7Ti2Si8O26(OH)4F
Reference: Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V. and Karipidis, T.K. (2010): Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139 (4), 35-47..
Cancrinite
Formula: (Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Reference: Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V. and Karipidis, T.K. (2010): Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139 (4), 35-47..
Eudialyte
Formula: Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Reference: BAPTISTA, A. (1980) Estudio radiocristografico da Eudialita de Pedra Balao, Poços de Caldas, Estado de Minas Gerais. [Radiocrystallographic study of eudialyte from Pedra Balao, Poços de Caldas, Minas Gerais.] Annaes da Academia Brasileira de Ciêncas, 52, (2), 243-250. (in Portugese)
Fluorite
Formula: CaF2
Reference: Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V. and Karipidis, T.K. (2010): Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139 (4), 35-47..
'K Feldspar'
Reference: Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V. and Karipidis, T.K. (2010): Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139 (4), 35-47..
Lamprophyllite
Formula: (Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Reference: BAPTISTA, A. (1976) Lamprofilita no lujaurito de Pedra Balão, Poços de Caldas, Minas Gerais. Lamprophyllite in the lujavrite of Pedra Balão, Poços de Caldas, Minas Gerais.] Annaes da Academia Brasileira de Ciêncas, t. 48, n. 3, 193-196. (in Portugese)
Manganoeudialyte (TL)
Formula: Na14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
Type Locality:
Reference: Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V. and Karipidis, T.K. (2010): Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139(4), 35-47.
Nepheline
Formula: Na3K(Al4Si4O16)
Reference: Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V. and Karipidis, T.K. (2010): Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139(4), 35-47.
Rinkite-(Ce)
Formula: (Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Reference: Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V. and Karipidis, T.K. (2010): Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139 (4), 35-47..
Sodalite
Formula: Na8(Al6Si6O24)Cl2
Reference: Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V. and Karipidis, T.K. (2010): Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139 (4), 35-47..
Titanite
Formula: CaTi(SiO4)O
Reference: Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V. and Karipidis, T.K. (2010): Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139 (4), 35-47..

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
Fluorite3.AB.25CaF2
Group 9 - Silicates
Aegirine9.DA.25NaFe3+Si2O6
Analcime9.GB.05Na(AlSi2O6) · H2O
Astrophyllite9.DC.05K2NaFe2+7Ti2Si8O26(OH)4F
Cancrinite9.FB.05(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Eudialyte9.CO.10Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Lamprophyllite9.BE.25(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Manganoeudialyte (TL)9.CO.10Na14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
Nepheline9.FA.05Na3K(Al4Si4O16)
Rinkite-(Ce)9.00.20(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Sodalite9.FB.10Na8(Al6Si6O24)Cl2
Titanite9.AG.15CaTi(SiO4)O
Unclassified Minerals, Rocks, etc.
'K Feldspar'-

List of minerals arranged by Dana 8th Edition classification

Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
Lamprophyllite56.2.6c.4(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Group 64 - CYCLOSILICATES Rings with Other Anions and Insular Silicate Groups
Rings with Other Anions and Insular Silicate Groups with mixed ring types
Eudialyte64.1.1.1Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Manganoeudialyte (TL)64.1.1.4Na14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Aegirine65.1.3c.2NaFe3+Si2O6
Group 69 - INOSILICATES Chains with Side Branches or Loops
Chains with Side Branches or Loops with (P=2, and N=4, 2 branches)
Astrophyllite69.1.1.1K2NaFe2+7Ti2Si8O26(OH)4F
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework Feldspathoids and related species
Cancrinite76.2.5.3(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Nepheline76.2.1.2Na3K(Al4Si4O16)
Sodalite76.2.3.1Na8(Al6Si6O24)Cl2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Unclassified Minerals, Mixtures, etc.
'K Feldspar'-
Rinkite-(Ce)-(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2

List of minerals for each chemical element

HHydrogen
H ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
H EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
H Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
H AnalcimeNa(AlSi2O6) · H2O
H AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
H Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
CCarbon
C Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
OOxygen
O ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
O AegirineNaFe3+Si2O6
O NephelineNa3K(Al4Si4O16)
O EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
O Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
O AnalcimeNa(AlSi2O6) · H2O
O SodaliteNa8(Al6Si6O24)Cl2
O Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
O AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
O TitaniteCaTi(SiO4)O
O Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
FFluorine
F Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
F Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
F AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
F FluoriteCaF2
NaSodium
Na ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
Na AegirineNaFe3+Si2O6
Na NephelineNa3K(Al4Si4O16)
Na EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Na Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Na AnalcimeNa(AlSi2O6) · H2O
Na SodaliteNa8(Al6Si6O24)Cl2
Na Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Na AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Na Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
AlAluminium
Al NephelineNa3K(Al4Si4O16)
Al AnalcimeNa(AlSi2O6) · H2O
Al SodaliteNa8(Al6Si6O24)Cl2
Al Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
SiSilicon
Si ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
Si AegirineNaFe3+Si2O6
Si NephelineNa3K(Al4Si4O16)
Si EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Si Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Si AnalcimeNa(AlSi2O6) · H2O
Si SodaliteNa8(Al6Si6O24)Cl2
Si Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Si AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Si TitaniteCaTi(SiO4)O
Si Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
SSulfur
S Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
ClChlorine
Cl ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
Cl EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Cl SodaliteNa8(Al6Si6O24)Cl2
KPotassium
K NephelineNa3K(Al4Si4O16)
K AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
CaCalcium
Ca ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
Ca EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Ca Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Ca TitaniteCaTi(SiO4)O
Ca FluoriteCaF2
Ca Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
TiTitanium
Ti Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Ti Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Ti AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Ti TitaniteCaTi(SiO4)O
MnManganese
Mn ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
Mn EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Mn Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
FeIron
Fe AegirineNaFe3+Si2O6
Fe EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Fe Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Fe AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
SrStrontium
Sr Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
ZrZirconium
Zr ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
Zr EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
CeCerium
Ce Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Baptista, A. (1976) Lamprofilita no lujaurito de Pedra Balão, Poços de Caldas, Minas Gerais. Lamprophyllite in the lujavrite of Pedra Balão, Poços de Caldas, Minas Gerais.] Annaes da Academia Brasileira de Ciêncas, 48(3), 193-196 (in Portugese).
Baptista, A. (1980) Estudio radiocristografico da Eudialita de Pedra Balao, Poços de Caldas, Estado de Minas Gerais. [Radiocrystallographic study of eudialyte from Pedra Balao, Poços de Caldas, Minas Gerais.] Annaes da Academia Brasileira de Ciêncas, 52(2), 243-250 (in Portugese).
Nomura, S.F., Atencio, D., Chukanov, N.V., Rastsvetaeva, R.K., Cutinho, J.M.V., and Karipidis, T.K. (2010) Manganoeudialyte, a new mineral from Poços de Caldas, Minas Gerais, Brazil. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 139(4), 35-47.

Other Regions, Features and Areas containing this locality

Brazil
South AmericaContinent
South America PlateTectonic Plate

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