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Prefeitura quarry, Poços de Caldas, Poços de Caldas alkaline complex, Minas Gerais, Brazili
Regional Level Types
Prefeitura quarryQuarry
Poços de Caldas- not defined -
Poços de Caldas alkaline complexComplex
Minas Gerais- not defined -
BrazilCountry

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Latitude & Longitude (WGS84):
21° 47' 2'' South , 46° 31' 50'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Poços de Caldas146,588 (2017)3.2km
Botelhos11,072 (2012)21.8km
Campestre11,802 (2012)30.5km
Caconde12,434 (2012)30.6km
Andradas26,772 (2012)31.8km
Name(s) in local language(s):
Pedreira da Prefeitura, Poços de Caldas


Small, inactive quarry in the town of Poços de Caldas owned by the municipality. It was operated by the town and the nepheline syenite rock was used for road repairs etc. Narrow mineralized veins in nepheline syenite have interesting mineralogy.

Regions containing this locality

South America PlateTectonic Plate
South AmericaContinent
Poços de Caldas alkaline complex, Minas Gerais, BrazilComplex

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


23 valid minerals.

Detailed Mineral List:

Aegirine
Formula: NaFe3+Si2O6
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Analcime
Formula: Na(AlSi2O6) · H2O
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Ancylite-(Ce)
Formula: CeSr(CO3)2(OH) · H2O
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Burbankite
Formula: (Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Calcioancylite-(Ce)
Formula: (Ce,Ca,Sr)CO3(OH,H2O)
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Chamosite
Formula: (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
'Chlorite Group'
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Fluorite
Formula: CaF2
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Gaidonnayite
Formula: Na2Zr(Si3O9) · 2H2O
Habit: Twinned orthorhombic prisms
Colour: yellow, green white
Fluorescence: bright green
Description: crystals to 3 and 4 mm are very large for species.
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Hainite-(Y)
Formula: Na2Ca4(Y,REE)Ti(Si2O7)2OF3
Reference: Atencio et al (1999) Canadian Mineralogist 37, 91-98
Hilairite
Formula: Na2Zr[SiO3]3 · 3H2O
Reference: Horváth, Menezes, Toft collections - confirmed by XRD & microprobe; Pekov, I. et al (2003): New Data on Minerals: 38: 20-33.
Ilmenite
Formula: Fe2+TiO3
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Kutnohorite
Formula: CaMn2+(CO3)2
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Microcline
Formula: K(AlSi3O8)
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Nepheline
Formula: Na3K(Al4Si4O16)
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Pectolite
Formula: NaCa2Si3O8(OH)
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Pyrite
Formula: FeS2
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Pyrophanite
Formula: Mn2+TiO3
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Quartz
Formula: SiO2
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Sodalite
Formula: Na8(Al6Si6O24)Cl2
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Strontianite
Formula: SrCO3
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
Titanite
Formula: CaTi(SiO4)O
Reference: Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Ilmenite4.CB.05Fe2+TiO3
Pyrophanite4.CB.05Mn2+TiO3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Ancylite-(Ce)5.DC.05CeSr(CO3)2(OH) · H2O
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Burbankite5.AC.30(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Calcioancylite-(Ce)5.DC.05(Ce,Ca,Sr)CO3(OH,H2O)
Kutnohorite5.AB.10CaMn2+(CO3)2
Strontianite5.AB.15SrCO3
Group 9 - Silicates
Aegirine9.DA.25NaFe3+Si2O6
Analcime9.GB.05Na(AlSi2O6) · H2O
Chamosite9.EC.55(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Gaidonnayite9.DM.15Na2Zr(Si3O9) · 2H2O
Hainite-(Y)9.BE.22Na2Ca4(Y,REE)Ti(Si2O7)2OF3
Hilairite9.DM.10Na2Zr[SiO3]3 · 3H2O
Microcline9.FA.30K(AlSi3O8)
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Nepheline9.FA.05Na3K(Al4Si4O16)
Pectolite9.DG.05NaCa2Si3O8(OH)
Sodalite9.FB.10Na8(Al6Si6O24)Cl2
Titanite9.AG.15CaTi(SiO4)O
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Pyrophanite4.3.5.3Mn2+TiO3
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Strontianite14.1.3.3SrCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Kutnohorite14.2.1.3CaMn2+(CO3)2
Miscellaneous
Burbankite14.4.4.1(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Group 16b - HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
Ancylite-(Ce)16b.1.1.1CeSr(CO3)2(OH) · H2O
Calcioancylite-(Ce)16b.1.1.2(Ce,Ca,Sr)CO3(OH,H2O)
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
Hainite-(Y)56.2.4.9Na2Ca4(Y,REE)Ti(Si2O7)2OF3
Group 59 - CYCLOSILICATES Three-Membered Rings
Three-Membered Rings, hydrated
Gaidonnayite59.2.2.3Na2Zr(Si3O9) · 2H2O
Hilairite59.2.3.1Na2Zr[SiO3]3 · 3H2O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Aegirine65.1.3c.2NaFe3+Si2O6
Single-Width Unbranched Chains, W=1 with chains P=3
Pectolite65.2.1.4aNaCa2Si3O8(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Chamosite71.4.1.7(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Microcline76.1.1.5K(AlSi3O8)
Al-Si Framework Feldspathoids and related species
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
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
H GaidonnayiteNa2Zr(Si3O9) · 2H2O
H AnalcimeNa(AlSi2O6) · H2O
H Ancylite-(Ce)CeSr(CO3)2(OH) · H2O
H Calcioancylite-(Ce)(Ce,Ca,Sr)CO3(OH,H2O)
H Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
H HilairiteNa2Zr[SiO3]3 · 3H2O
H NatroliteNa2Al2Si3O10 · 2H2O
H PectoliteNaCa2Si3O8(OH)
CCarbon
C Ancylite-(Ce)CeSr(CO3)2(OH) · H2O
C AnkeriteCa(Fe2+,Mg)(CO3)2
C Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
C Calcioancylite-(Ce)(Ce,Ca,Sr)CO3(OH,H2O)
C KutnohoriteCaMn2+(CO3)2
C StrontianiteSrCO3
OOxygen
O GaidonnayiteNa2Zr(Si3O9) · 2H2O
O AegirineNaFe3+Si2O6
O AnalcimeNa(AlSi2O6) · H2O
O Ancylite-(Ce)CeSr(CO3)2(OH) · H2O
O AnkeriteCa(Fe2+,Mg)(CO3)2
O Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
O Calcioancylite-(Ce)(Ce,Ca,Sr)CO3(OH,H2O)
O Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
O HilairiteNa2Zr[SiO3]3 · 3H2O
O IlmeniteFe2+TiO3
O KutnohoriteCaMn2+(CO3)2
O MicroclineK(AlSi3O8)
O NatroliteNa2Al2Si3O10 · 2H2O
O NephelineNa3K(Al4Si4O16)
O PectoliteNaCa2Si3O8(OH)
O PyrophaniteMn2+TiO3
O QuartzSiO2
O SodaliteNa8(Al6Si6O24)Cl2
O StrontianiteSrCO3
O TitaniteCaTi(SiO4)O
O Hainite-(Y)Na2Ca4(Y,REE)Ti(Si2O7)2OF3
FFluorine
F FluoriteCaF2
F Hainite-(Y)Na2Ca4(Y,REE)Ti(Si2O7)2OF3
NaSodium
Na GaidonnayiteNa2Zr(Si3O9) · 2H2O
Na AegirineNaFe3+Si2O6
Na AnalcimeNa(AlSi2O6) · H2O
Na Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Na HilairiteNa2Zr[SiO3]3 · 3H2O
Na NatroliteNa2Al2Si3O10 · 2H2O
Na NephelineNa3K(Al4Si4O16)
Na PectoliteNaCa2Si3O8(OH)
Na SodaliteNa8(Al6Si6O24)Cl2
Na Hainite-(Y)Na2Ca4(Y,REE)Ti(Si2O7)2OF3
MgMagnesium
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
AlAluminium
Al AnalcimeNa(AlSi2O6) · H2O
Al Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Al MicroclineK(AlSi3O8)
Al NatroliteNa2Al2Si3O10 · 2H2O
Al NephelineNa3K(Al4Si4O16)
Al SodaliteNa8(Al6Si6O24)Cl2
SiSilicon
Si GaidonnayiteNa2Zr(Si3O9) · 2H2O
Si AegirineNaFe3+Si2O6
Si AnalcimeNa(AlSi2O6) · H2O
Si Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Si HilairiteNa2Zr[SiO3]3 · 3H2O
Si MicroclineK(AlSi3O8)
Si NatroliteNa2Al2Si3O10 · 2H2O
Si NephelineNa3K(Al4Si4O16)
Si PectoliteNaCa2Si3O8(OH)
Si QuartzSiO2
Si SodaliteNa8(Al6Si6O24)Cl2
Si TitaniteCaTi(SiO4)O
Si Hainite-(Y)Na2Ca4(Y,REE)Ti(Si2O7)2OF3
SSulfur
S PyriteFeS2
ClChlorine
Cl SodaliteNa8(Al6Si6O24)Cl2
KPotassium
K MicroclineK(AlSi3O8)
K NephelineNa3K(Al4Si4O16)
CaCalcium
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Ca Calcioancylite-(Ce)(Ce,Ca,Sr)CO3(OH,H2O)
Ca FluoriteCaF2
Ca KutnohoriteCaMn2+(CO3)2
Ca PectoliteNaCa2Si3O8(OH)
Ca TitaniteCaTi(SiO4)O
Ca Hainite-(Y)Na2Ca4(Y,REE)Ti(Si2O7)2OF3
TiTitanium
Ti IlmeniteFe2+TiO3
Ti PyrophaniteMn2+TiO3
Ti TitaniteCaTi(SiO4)O
Ti Hainite-(Y)Na2Ca4(Y,REE)Ti(Si2O7)2OF3
MnManganese
Mn KutnohoriteCaMn2+(CO3)2
Mn PyrophaniteMn2+TiO3
FeIron
Fe AegirineNaFe3+Si2O6
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Fe IlmeniteFe2+TiO3
Fe PyriteFeS2
SrStrontium
Sr Ancylite-(Ce)CeSr(CO3)2(OH) · H2O
Sr Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Sr Calcioancylite-(Ce)(Ce,Ca,Sr)CO3(OH,H2O)
Sr StrontianiteSrCO3
YYttrium
Y Hainite-(Y)Na2Ca4(Y,REE)Ti(Si2O7)2OF3
ZrZirconium
Zr GaidonnayiteNa2Zr(Si3O9) · 2H2O
Zr HilairiteNa2Zr[SiO3]3 · 3H2O
BaBarium
Ba Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
CeCerium
Ce Ancylite-(Ce)CeSr(CO3)2(OH) · H2O
Ce Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Ce Calcioancylite-(Ce)(Ce,Ca,Sr)CO3(OH,H2O)

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

Neoproterozoic
541 - 1000 Ma



ID: 3187316
Neoproterozoic crystalline metamorphic rocks

Age: Neoproterozoic (541 - 1000 Ma)

Lithology: Medium-high grade unclassified metamorphic rock

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


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