Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Izalco Volcano, Sonsonate Department, El Salvadori
Regional Level Types
Izalco VolcanoVolcano
Sonsonate DepartmentDepartment
El SalvadorCountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84): 13° 48' 49'' North , 89° 37' 57'' West
Latitude & Longitude (decimal): 13.81366,-89.63264
GeoHash:G#: d42q86ew2
Locality type:Volcano
Köppen climate type:Aw : Tropical savanna, wet
Nearest Settlements:
PlacePopulationDistance
Izalco19,197 (2012)8.8km
Nahuizalco7,358 (2012)11.9km
Sonzacate15,446 (2014)12.5km
Juayúa9,936 (2012)12.6km
Sonsonate59,468 (2012)14.4km


The volcano was almost continuously active from its birth in 1770 until 1958. Since then only a brief, very small flank eruption in 1966 has interrupted dormancy. Pre-1966 Izalco lavas are vesicular vitrophyric olivine basalts, usually with bytownite phenocrysts and augite.

Many new minerals have been found in the fumaroles and fumarolic sublimates which are unusually rich in vanadium.

Regions containing this locality

Caribbean PlateTectonic Plate
Central AmericaRegion

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


15 valid minerals. 8 (TL) - type locality of valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: www.geo.mtu.edu/volcanoes/central_america/el_salvador/izalco/petro.html a
Albite var: Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Reference: www.geo.mtu.edu/volcanoes/central_america/el_salvador/izalco/petro.html a
Anorthite
Formula: Ca(Al2Si2O8)
Reference: www.geo.mtu.edu/volcanoes/central_america/el_salvador/izalco/petro.html a
Anorthite var: Bytownite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Reference: www.geo.mtu.edu/volcanoes/central_america/el_salvador/izalco/petro.html a
Anorthite var: Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Reference: www.geo.mtu.edu/volcanoes/central_america/el_salvador/izalco/petro.html a
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: www.geo.mtu.edu/volcanoes/central_america/el_salvador/izalco/petro.html a
Bannermanite (TL)
Formula: (Na,K)0.7V4+0.7V5+5.3O15
Type Locality:
Reference: Amer.Min.(1983) 68, 634-641
Blossite (TL)
Formula: α-Cu2(V2O7)
Type Locality:
Reference: American Mineralogist (1987) 72, 397-400; HB3 (1997)
Chalcanthite
Formula: CuSO4 · 5H2O
Reference: Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 36
Chalcocyanite
Formula: CuSO4
Reference: Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 36
Euchlorine
Formula: KNaCu3(SO4)3O
Reference: http://www.geo.mtu.edu/volcanoes/central_america/el_salvador/izalco/fumar.html; Amer.Min.(1985) 70, 193-196
'Fayalite-Forsterite Series'
Reference: www.geo.mtu.edu/volcanoes/central_america/el_salvador/izalco/petro.html a
Fingerite (TL)
Formula: Cu11(VO4)6O2
Type Locality:
Reference: Amer.Min.(1985) 70, 193-196; HB4 (2000)
Howardevansite (TL)
Formula: NaCuFe2(VO4)3
Type Locality:
Reference: Amer.Min.(1988) 73, 181-186
'Hypersthene'
Formula: (Mg,Fe)SiO3
Reference: www.geo.mtu.edu/volcanoes/central_america/el_salvador/izalco/petro.html a
Lyonsite (TL)
Formula: Cu3Fe4(VO4)6
Type Locality:
Description: Fumarolic sublimate.
Reference: Amer.Min.(1987) 72, 1000-1005
Mcbirneyite (TL)
Formula: Cu3(VO4)2
Type Locality:
Reference: J. Volc. Geoth. Res. 33(1987), 183; HB4 (2000)
Shcherbinaite
Formula: V5+2O5
Reference: http://www.geo.mtu.edu/volcanoes/central_america/el_salvador/izalco/fumar.html; Amer.Min.(1983) 68, 634-641 ; Hughes, J. M., & Finger, L. W. (1983). The crystal chemistry of shcherbinaite, naturally occurring V 2 O 5. American Mineralogist, 68(11-12), 1220-1222.
Stoiberite (TL)
Formula: Cu5(VO4)2O2
Type Locality:
Reference: AM 64 (1979), 941; HB3 (1997); Amer.Min.(1983) 68, 634-641
'Thénardite'
Formula: Na2SO4
Reference: Am Min 70:1-2 pp 193-196; Amer.Min.(1985) 70, 193-196
'UM1980-18-VO:Cu'
Formula: Cu4V2O9
Reference: Hughes, J.M., Birnie, R.W. (1980): Ziesite, β-Cu2V2O7, a new copper vanadate and fumarole temperature indicator. American Mineralogist: 65: 1146-1149
Ziesite (TL)
Formula: β-Cu2(V2O7)
Type Locality:
Reference: [Amer.Min.(1980) 65, 1146-1149; MinRec 18:339]; Amer.Min.(1983) 68, 634-641

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Bannermanite (TL)4.HF.05(Na,K)0.7V4+0.7V5+5.3O15
Shcherbinaite4.HE.10V5+2O5
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Chalcanthite7.CB.20CuSO4 · 5H2O
Chalcocyanite7.AB.10CuSO4
Euchlorine7.BC.30KNaCu3(SO4)3O
'Thénardite'7.AC.25Na2SO4
Group 8 - Phosphates, Arsenates and Vanadates
Blossite (TL)8.FA.05α-Cu2(V2O7)
Fingerite (TL)8.BB.80Cu11(VO4)6O2
Howardevansite (TL)8.AC.05NaCuFe2(VO4)3
Lyonsite (TL)8.AB.40Cu3Fe4(VO4)6
Mcbirneyite (TL)8.AB.35Cu3(VO4)2
Stoiberite (TL)8.BB.75Cu5(VO4)2O2
Ziesite (TL)8.FA.10β-Cu2(V2O7)
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var: Andesine9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Anorthite9.FA.35Ca(Al2Si2O8)
var: Bytownite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
var: Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Unclassified Minerals, Rocks, etc.
'Fayalite-Forsterite Series'-
'Hypersthene'-(Mg,Fe)SiO3
'UM1980-18-VO:Cu'-Cu4V2O9

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
Miscellaneous
Shcherbinaite4.6.1.1V5+2O5
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
A2XO4
'Thénardite'28.2.3.1Na2SO4
AXO4
Chalcocyanite28.3.3.1CuSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Chalcanthite29.6.7.1CuSO4 · 5H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)3Zq
Euchlorine30.3.1.1KNaCu3(SO4)3O
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
(AB)3(XO4)2
Mcbirneyite (TL)38.3.10.1Cu3(VO4)2
Miscellaneous
Blossite (TL)38.5.6.1α-Cu2(V2O7)
Howardevansite (TL)38.5.3.1NaCuFe2(VO4)3
Lyonsite (TL)38.5.2.1Cu3Fe4(VO4)6
Ziesite (TL)38.5.5.2β-Cu2(V2O7)
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)2Zq
Stoiberite (TL)41.4.5.1Cu5(VO4)2O2
Miscellaneous
Fingerite (TL)41.11.3.1Cu11(VO4)6O2
Group 47 - VANADIUM OXYSALTS
Hydrated Normal Vanadium Oxysalts
Bannermanite (TL)47.3.5.1(Na,K)0.7V4+0.7V5+5.3O15
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
var: Andesine-(Na,Ca)[Al(Si,Al)Si2O8]
Anorthite-Ca(Al2Si2O8)
var: Bytownite-(Ca,Na)[Al(Al,Si)Si2O8]
var: Labradorite-(Ca,Na)[Al(Al,Si)Si2O8]
'Fayalite-Forsterite Series'-
'Hypersthene'-(Mg,Fe)SiO3
'UM1980-18-VO:Cu'-Cu4V2O9

List of minerals for each chemical element

HHydrogen
H ChalcanthiteCuSO4 · 5H2O
OOxygen
O LyonsiteCu3Fe4(VO4)6
O Ziesiteβ-Cu2(V2O7)
O Blossiteα-Cu2(V2O7)
O FingeriteCu11(VO4)6O2
O McbirneyiteCu3(VO4)2
O StoiberiteCu5(VO4)2O2
O Bannermanite(Na,K)0.7V4+0.7V5+5.3O15
O HowardevansiteNaCuFe2(VO4)3
O ShcherbinaiteV25+O5
O EuchlorineKNaCu3(SO4)3O
O ThénarditeNa2SO4
O Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
O Hypersthene(Mg,Fe)SiO3
O Albite (var: Andesine)(Na,Ca)[Al(Si,Al)Si2O8]
O ChalcocyaniteCuSO4
O ChalcanthiteCuSO4 · 5H2O
O UM1980-18-VO:CuCu4V2O9
O AnorthiteCa(Al2Si2O8)
O AlbiteNa(AlSi3O8)
NaSodium
Na Bannermanite(Na,K)0.7V4+0.7V5+5.3O15
Na HowardevansiteNaCuFe2(VO4)3
Na EuchlorineKNaCu3(SO4)3O
Na ThénarditeNa2SO4
Na Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Na Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Na Albite (var: Andesine)(Na,Ca)[Al(Si,Al)Si2O8]
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg Hypersthene(Mg,Fe)SiO3
AlAluminium
Al Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Al Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Al Albite (var: Andesine)(Na,Ca)[Al(Si,Al)Si2O8]
Al AnorthiteCa(Al2Si2O8)
Al AlbiteNa(AlSi3O8)
SiSilicon
Si Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Si Hypersthene(Mg,Fe)SiO3
Si Albite (var: Andesine)(Na,Ca)[Al(Si,Al)Si2O8]
Si AnorthiteCa(Al2Si2O8)
Si AlbiteNa(AlSi3O8)
SSulfur
S EuchlorineKNaCu3(SO4)3O
S ThénarditeNa2SO4
S ChalcocyaniteCuSO4
S ChalcanthiteCuSO4 · 5H2O
KPotassium
K Bannermanite(Na,K)0.7V4+0.7V5+5.3O15
K EuchlorineKNaCu3(SO4)3O
CaCalcium
Ca Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Ca Albite (var: Andesine)(Na,Ca)[Al(Si,Al)Si2O8]
Ca AnorthiteCa(Al2Si2O8)
VVanadium
V LyonsiteCu3Fe4(VO4)6
V Ziesiteβ-Cu2(V2O7)
V Blossiteα-Cu2(V2O7)
V FingeriteCu11(VO4)6O2
V McbirneyiteCu3(VO4)2
V StoiberiteCu5(VO4)2O2
V Bannermanite(Na,K)0.7V4+0.7V5+5.3O15
V HowardevansiteNaCuFe2(VO4)3
V ShcherbinaiteV25+O5
V UM1980-18-VO:CuCu4V2O9
FeIron
Fe LyonsiteCu3Fe4(VO4)6
Fe HowardevansiteNaCuFe2(VO4)3
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe Hypersthene(Mg,Fe)SiO3
CuCopper
Cu LyonsiteCu3Fe4(VO4)6
Cu Ziesiteβ-Cu2(V2O7)
Cu Blossiteα-Cu2(V2O7)
Cu FingeriteCu11(VO4)6O2
Cu McbirneyiteCu3(VO4)2
Cu StoiberiteCu5(VO4)2O2
Cu HowardevansiteNaCuFe2(VO4)3
Cu EuchlorineKNaCu3(SO4)3O
Cu ChalcocyaniteCuSO4
Cu ChalcanthiteCuSO4 · 5H2O
Cu UM1980-18-VO:CuCu4V2O9

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

Miocene
5.333 - 23.03 Ma



ID: 3188297
Cenozoic volcanic rocks

Age: Miocene (5.333 - 23.03 Ma)

Lithology: Intermediate-felsic 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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Birnie, R.W. and Hughes, J.M. (1979) Stoiberite, Cu5V2O10, a new copper vanadate from Izalco volcano, El Salvador, Central America. American Mineralogist, 64, 941-944. http://www.minsocam.org/ammin/AM64/AM64_941.pdf
Birnie, R.W. and Hughes, J.M. (1980) Ziesite, β-Cu2(V2O7), a new copper vanadate and fumarole temperature indicator. American Mineralogist, 65, 1146-1149. http://www.minsocam.org/ammin/AM65/AM65_1146.pdf
Hughes, J.M. and Finger, L.W. (1980) Bannermanite, a new sodium-potassium vanadate isostructural with β-NaxV6O15. American Mineralogist, 68, 634-642. http://www.minsocam.org/ammin/AM68/AM68_634.pdf
Hughes, J.M. and Finger, L.W. (1983) The crystal chemistry of shcherbinaite, naturally occurring V2O5. American Mineralogist, 68(11-12), 1220-1222. http://www.minsocam.org/ammin/AM68/AM68_1220.pdf
Hughes, J.M. and Hadidiacos, C.G. (1985) Fingerite, Cu11O2(VO4)6, a new vanadium sublimate from Izalco crater, El Salvador: descriptive mineralogy. American Mineralogist, 70, 193-196. http://www.minsocam.org/ammin/AM70/AM70_193.pdf
Robinson, P.D., Hughes, J.M., and Malinconico, M.L. (1987) Blossite, α-Cu2[V2O7], a new fumarolic sublimate from Izalco volcano, El Salvador. American Mineralogist, 72, 397-400. http://www.minsocam.org/ammin/AM72/AM72_397.pdf
Hughes, J.M., Starkey, S.J., Malinconico, M.L., and Malinconico, L.L. (1987) Lyonsite, Cu32+Fe43+(VO4)63-, a new fumarolic sublimate from Izalco volcano, El Salvador: Descriptive mineralogy and crystal structure. American Mineralogist, 72, 1000-1005. http://www.minsocam.org/ammin/AM72/AM72_1000.pdf
Hughes, J.M., Christian, B.S., Finger, L.W., and Malinconico, L.L. (1987) Mcbirneyite, Cu3(VO4)2, a new sublimate mineral from the fumaroles of Izalco Volcano, El Salvador. Journal of Volcanology and Geothermal Research, 33, 183–190.
Hughes, J.M., Drexler, J.W., Campana, C.F., and Malinconico, M.L. (1988) Howardevansite, NaCuFe2(VO4)3, a new fumarolic sublimate from Izalco volcano, El Salvador: Descriptive mineralogy and crystal structure. American Mineralogist, 73, 181-186. http://www.minsocam.org/ammin/AM73/AM73_181.pdf

External Links



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: April 25, 2019 01:02:06 Page generated: March 26, 2019 03:42:26
Go to top of page