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Payún volcano, Altiplano de Payún Matru, Malargüe Department, Mendoza, Argentina

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Latitude & Longitude (WGS84): 36° 30' South , 69° 18' West
Latitude & Longitude (decimal): -36.50000,-69.30000
GeoHash:G#: 63w8r53k0
Locality type:Volcano
Köppen climate type:Csb : Warm-summer Mediterranean climate
Name(s) in local language(s):El Payún Matrú


National Park (collecting strictly prohibited!), just north of the Colorado River (and therefore just outside the formal border of the vast region known as Patagonia) in southern Mendoza.

Famous for giant crystals of hematite pseudomorphs after magnetite, of volcanic fumarole origin.

Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

Payún volcano, Altiplano de Payún Matru, Mendoza, Argentina

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


8 valid minerals.

Detailed Mineral List:

Aegirine
Formula: NaFe3+Si2O6
Description: fumarolic
Reference: Alfredo Petrov collection
Anglesite
Formula: PbSO4
Reference: Alfredo Petrov collection
'Biotite'
Description: fumarolic
Reference: Alfredo Petrov collection
Cristobalite
Formula: SiO2
Description: On faces of (and therefore younger than) large hematite crystals.
Reference: PXRD by John Attard.
Fluorapatite
Formula: Ca5(PO4)3F
Description: Prismatic white crystals on magnetite crystals. (PXRD confirmed.)
Reference: Donald A. Dallaire specimen
Hematite
Formula: Fe2O3
Reference: [www.johnbetts-fineminerals.com]
Hematite var: Martite
Formula: Fe2O3
Reference: Van King
Magnetite
Formula: Fe2+Fe3+2O4
Description: fumarolic
Reference: Bill Smith collection; Alfredo Petrov collection
Opal
Formula: SiO2 · nH2O
Description: fumarolic
Reference: Alfredo Petrov collection
Opal var: Opal-AN
Formula: SiO2 · nH2O
Description: fumarolic
Reference: Alfredo Petrov collection
Wulfenite
Formula: Pb(MoO4)
Description: fumarolic?
Reference: Eduardo Jawerbaum (pers. comm.); ID confirmed by John Attard using PXRD and arc spectroscopy.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Cristobalite'4.DA.15SiO2
'Hematite'4.CB.05Fe2O3
var: Martite4.CB.05Fe2O3
'Magnetite'4.BB.05Fe2+Fe3+2O4
Opal4.DA.10SiO2 · nH2O
var: Opal-AN4.DA.10SiO2 · nH2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Anglesite'7.AD.35PbSO4
Wulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
'Fluorapatite'8.BN.05Ca5(PO4)3F
Group 9 - Silicates
'Aegirine'9.DA.25NaFe3+Si2O6
Unclassified Minerals, Rocks, etc.
'Biotite'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Wulfenite48.1.3.1Pb(MoO4)
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 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Cristobalite75.1.1.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Unclassified Minerals, Rocks, etc.
'Biotite'-
Hematite
var: Martite
-Fe2O3
Opal
var: Opal-AN
-SiO2 · nH2O

List of minerals for each chemical element

HHydrogen
H OpalSiO2 · nH2O
H Opal (var: Opal-AN)SiO2 · nH2O
OOxygen
O AegirineNaFe3+Si2O6
O AnglesitePbSO4
O CristobaliteSiO2
O FluorapatiteCa5(PO4)3F
O HematiteFe2O3
O MagnetiteFe2+Fe23+O4
O Hematite (var: Martite)Fe2O3
O OpalSiO2 · nH2O
O Opal (var: Opal-AN)SiO2 · nH2O
O WulfenitePb(MoO4)
FFluorine
F FluorapatiteCa5(PO4)3F
NaSodium
Na AegirineNaFe3+Si2O6
SiSilicon
Si AegirineNaFe3+Si2O6
Si CristobaliteSiO2
Si OpalSiO2 · nH2O
Si Opal (var: Opal-AN)SiO2 · nH2O
PPhosphorus
P FluorapatiteCa5(PO4)3F
SSulfur
S AnglesitePbSO4
CaCalcium
Ca FluorapatiteCa5(PO4)3F
FeIron
Fe AegirineNaFe3+Si2O6
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe Hematite (var: Martite)Fe2O3
MoMolybdenum
Mo WulfenitePb(MoO4)
PbLead
Pb AnglesitePbSO4
Pb WulfenitePb(MoO4)

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

Quaternary
0 - 2.588 Ma



ID: 3190381
Cenozoic volcanic rocks

Age: Pleistocene (0 - 2.588 Ma)

Lithology: Volcanic rocks

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

External Links



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