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Krafla Volcano, Myvatn, Skútustaðahreppur, Þingeyjarsveit, Northeastern Region, Icelandi
Regional Level Types
Krafla VolcanoVolcano
MyvatnLake
SkútustaðahreppurMunicipality (Rural) (Former)
ÞingeyjarsveitMunicipality
Northeastern RegionRegion
IcelandCountry

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02254820017272060421209.jpg
Krafla

Krafla Volcano, Myvatn, Skútustaðahreppur, Þingeyjarsveit, Northeastern Region, Iceland
05435770017272060426844.jpg
Krafla

Krafla Volcano, Myvatn, Skútustaðahreppur, Þingeyjarsveit, Northeastern Region, Iceland
08671900017272060422979.jpg
Krafla

Krafla Volcano, Myvatn, Skútustaðahreppur, Þingeyjarsveit, Northeastern Region, Iceland
02254820017272060421209.jpg
Krafla

Krafla Volcano, Myvatn, Skútustaðahreppur, Þingeyjarsveit, Northeastern Region, Iceland
05435770017272060426844.jpg
Krafla

Krafla Volcano, Myvatn, Skútustaðahreppur, Þingeyjarsveit, Northeastern Region, Iceland
08671900017272060422979.jpg
Krafla

Krafla Volcano, Myvatn, Skútustaðahreppur, Þingeyjarsveit, Northeastern Region, Iceland
02254820017272060421209.jpg
Krafla

Krafla Volcano, Myvatn, Skútustaðahreppur, Þingeyjarsveit, Northeastern Region, Iceland
05435770017272060426844.jpg
Krafla

Krafla Volcano, Myvatn, Skútustaðahreppur, Þingeyjarsveit, Northeastern Region, Iceland
Latitude & Longitude (WGS84):
65° 42' 51'' North , 16° 43' 49'' West
Latitude & Longitude (decimal):
65.71422,-16.73038
GRN:
N44W06
Type:
Volcano
Köppen climate type:
ET : Tundra
Nearest Settlements:
PlacePopulationDistance
Reykjahlíð153 (2017)11.6km
Mindat Locality ID:
30024
Long-form identifier:
mindat:1:2:30024:0
GUID (UUID V4):
0
Other Languages:
Icelandic:
Krafla, Myvatn, Skútustaðahreppur, Þingeyjarsveit, Norðurland eystra, Ísland


An active volcano adjacent to the Myvatn lake and the only active volcano, which is directly used by a geothermal power plant. Last erupted in 1984.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


52 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Alunite
Formula: KAl3(SO4)2(OH)6
ⓘ Alunogen
Formula: Al2(SO4)3 · 17H2O
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
ⓘ Anatase
Formula: TiO2
ⓘ Andradite
Formula: Ca3Fe3+2(SiO4)3
ⓘ Anhydrite
Formula: CaSO4
ⓘ Baryte
Formula: BaSO4
ⓘ Calcite
Formula: CaCO3
ⓘ 'Chabazite'
ⓘ 'Chlorite Group'
ⓘ Corrensite
Formula: (Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
ⓘ Cristobalite
Formula: SiO2
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Epsomite
Formula: MgSO4 · 7H2O
ⓘ Ferricopiapite
Formula: Fe3+0.67Fe3+4(SO4)6(OH)2 · 20H2O
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Halotrichite
Formula: Fe2+Al2(SO4)4 · 22H2O
ⓘ Haycockite
Formula: Cu4Fe5S8
ⓘ Hematite
Formula: Fe2O3
ⓘ Hematite var. Titanohematite
Formula: (Fe,Ti)2O3
ⓘ 'Heulandite Subgroup'
Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ 'Hypersthene'
Formula: (Mg,Fe)SiO3
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Jarosite
Formula: KFe3+3(SO4)2(OH)6
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ 'K Feldspar'
ⓘ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
ⓘ Maghemite
Formula: (Fe3+0.67◻0.33)Fe3+2O4
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Magnetite var. Titanium-bearing Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
ⓘ Meniaylovite
Formula: Ca4[(SO4)(SiF6)(AlF6)]F · 12H2O
ⓘ Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
ⓘ Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘ Mordenite
Formula: (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ Native Sulphur
Formula: S8
ⓘ Natroalunite
Formula: NaAl3(SO4)2(OH)6
ⓘ Natrojarosite
Formula: NaFe3(SO4)2(OH)6
ⓘ Prehnite
Formula: Ca2Al2Si3O10(OH)2
ⓘ Pyrite
Formula: FeS2
References:
Tamjidi, A. Borehole geology and hydrotermal alteration of well KJ-29 in the Krafla high-temperature area, NE-Iceland. United Nations University.
Carson III, George Lougheed (2015) Hydrothermal Acid-sulfate Alteration at Krafla and Námafjall, Ne Iceland: Implications for Gusev Crater and Meridiani Planum, Mars. The University of Wisconsin-Milwaukee.
Lévy, L.; Gibert, B.; Sigmundsson, F.; Deldicque, D.; Parat, F.; Hersir, G. P. (2019) Tracking Magmatic Hydrogen Sulfur Circulations Using Electrical Impedance: Complex Electrical Properties of Core Samples at the Krafla Volcano, Iceland. Journal of Geophysical Research: Solid Earth, 124 (3). p.2492-2509. doi:10.1029/2018jb016814
Escobedo, David, Patrier, Patricia, Beaufort, Daniel, Gibert, Benoit, Levy, Léa, Findling, Nathaniel, Mortensen, Annette (2021) Contribution of the Paragenetic Sequence of Clay Minerals to Re-Examination of the Alteration Zoning in the Krafla Geothermal System. Minerals, 11 (9) 935 doi:10.3390/min11090935
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Rhomboclase
Formula: (H5O2)Fe3+(SO4)2 · 2H2O
ⓘ Rosickýite
Formula: S
ⓘ Rostite
Formula: Al(SO4)(OH) · 5H2O
ⓘ Rozenite
Formula: FeSO4 · 4H2O
ⓘ Rutile
Formula: TiO2
ⓘ Saponite
Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
ⓘ Scolecite
Formula: CaAl2Si3O10 · 3H2O
ⓘ 'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
ⓘ Starkeyite
Formula: MgSO4 · 4H2O
ⓘ Stellerite
Formula: Ca4(Si28Al8)O72 · 28H2O
ⓘ 'Stilbite Subgroup'
Formula: M6-7[Al8-9Si27-28O72] · nH2O
ⓘ Szomolnokite
Formula: FeSO4 · H2O
ⓘ Titanite
Formula: CaTiO(SiO4)
ⓘ Troilite
Formula: FeS
ⓘ Variscite
Formula: AlPO4 · 2H2O
ⓘ Wairakite
Formula: Ca(Al2Si4O12) · 2H2O
ⓘ Wollastonite
Formula: Ca3(Si3O9)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘRosickýite1.CC.05S
ⓘNative Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
ⓘHaycockite2.CB.10bCu4Fe5S8
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘTroilite2.CC.10FeS
ⓘPyrite2.EB.05aFeS2
Group 3 - Halides
ⓘMeniaylovite3.CG.10Ca4[(SO4)(SiF6)(AlF6)]F · 12H2O
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘvar. Titanium-bearing Magnetite4.BB.05Fe2+(Fe3+,Ti)2O4
ⓘMaghemite4.BB.15(Fe3+0.67◻0.33)Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘHematite
var. Titanohematite		4.CB.05(Fe,Ti)2O3
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘCristobalite4.DA.15SiO2
ⓘRutile4.DB.05TiO2
ⓘAnatase4.DD.05TiO2
ⓘGoethite4.FD.10Fe3+O(OH)
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘBaryte7.AD.35BaSO4
ⓘAlunite7.BC.10KAl3(SO4)2(OH)6
ⓘJarosite7.BC.10KFe3+3(SO4)2(OH)6
ⓘNatroalunite7.BC.10NaAl3(SO4)2(OH)6
ⓘNatrojarosite7.BC.10NaFe3(SO4)2(OH)6
ⓘSzomolnokite7.CB.05FeSO4 · H2O
ⓘRozenite7.CB.15FeSO4 · 4H2O
ⓘStarkeyite7.CB.15MgSO4 · 4H2O
ⓘEpsomite7.CB.40MgSO4 · 7H2O
ⓘAlunogen7.CB.45Al2(SO4)3 · 17H2O
ⓘRhomboclase7.CB.55(H5O2)Fe3+(SO4)2 · 2H2O
ⓘHalotrichite7.CB.85Fe2+Al2(SO4)4 · 22H2O
ⓘGypsum7.CD.40CaSO4 · 2H2O
ⓘRostite7.DB.10Al(SO4)(OH) · 5H2O
ⓘFerricopiapite7.DB.35Fe3+0.67Fe3+4(SO4)6(OH)2 · 20H2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘVariscite8.CD.10AlPO4 · 2H2O
Group 9 - Silicates
ⓘAndradite9.AD.25Ca3Fe3+2(SiO4)3
ⓘTitanite9.AG.15CaTiO(SiO4)
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘWollastonite9.DG.05Ca3(Si3O9)
ⓘPrehnite9.DP.20Ca2Al2Si3O10(OH)2
ⓘMuscovite
var. Illite		9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘMontmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘSaponite9.EC.45Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
ⓘCorrensite9.EC.60(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘMesolite9.GA.05Na2Ca2Si9Al6O30 · 8H2O
ⓘScolecite9.GA.05CaAl2Si3O10 · 3H2O
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
ⓘWairakite9.GB.05Ca(Al2Si4O12) · 2H2O
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
ⓘMordenite9.GD.35(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
ⓘStellerite9.GE.15Ca4(Si28Al8)O72 · 28H2O
Unclassified
ⓘ'K Feldspar
var. Adularia'		-KAlSi3O8
ⓘ'Chabazite'-
ⓘ'Chlorite Group'-
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ'Hypersthene'-(Mg,Fe)SiO3
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O
ⓘ'K Feldspar'-
ⓘ'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ AluniteKAl3(SO4)2(OH)6
Hⓘ AlunogenAl2(SO4)3 · 17H2O
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ EpsomiteMgSO4 · 7H2O
Hⓘ FerricopiapiteFe3+0.67Fe43+(SO4)6(OH)2 · 20H2O
Hⓘ GoethiteFe3+O(OH)
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ HalotrichiteFe2+Al2(SO4)4 · 22H2O
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Hⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hⓘ JarositeKFe33+(SO4)2(OH)6
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Hⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Hⓘ NatroaluniteNaAl3(SO4)2(OH)6
Hⓘ NatrojarositeNaFe3(SO4)2(OH)6
Hⓘ PrehniteCa2Al2Si3O10(OH)2
Hⓘ Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2O
Hⓘ RostiteAl(SO4)(OH) · 5H2O
Hⓘ RozeniteFeSO4 · 4H2O
Hⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Hⓘ ScoleciteCaAl2Si3O10 · 3H2O
Hⓘ StarkeyiteMgSO4 · 4H2O
Hⓘ StelleriteCa4(Si28Al8)O72 · 28H2O
Hⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Hⓘ SzomolnokiteFeSO4 · H2O
Hⓘ VarisciteAlPO4 · 2H2O
Hⓘ WairakiteCa(Al2Si4O12) · 2H2O
Hⓘ Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
Hⓘ MeniayloviteCa4[(SO4)(SiF6)(AlF6)]F · 12H2O
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ K Feldspar var. AdulariaKAlSi3O8
Oⓘ AluniteKAl3(SO4)2(OH)6
Oⓘ AlunogenAl2(SO4)3 · 17H2O
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ AnataseTiO2
Oⓘ AndraditeCa3Fe23+(SiO4)3
Oⓘ AnhydriteCaSO4
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Oⓘ CristobaliteSiO2
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ EpsomiteMgSO4 · 7H2O
Oⓘ FerricopiapiteFe3+0.67Fe43+(SO4)6(OH)2 · 20H2O
Oⓘ GoethiteFe3+O(OH)
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HalotrichiteFe2+Al2(SO4)4 · 22H2O
Oⓘ HematiteFe2O3
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Oⓘ Hypersthene(Mg,Fe)SiO3
Oⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oⓘ IlmeniteFe2+TiO3
Oⓘ JarositeKFe33+(SO4)2(OH)6
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ Maghemite(Fe3+0.67◻0.33)Fe23+O4
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Oⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Oⓘ NatroaluniteNaAl3(SO4)2(OH)6
Oⓘ NatrojarositeNaFe3(SO4)2(OH)6
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ QuartzSiO2
Oⓘ Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2O
Oⓘ RostiteAl(SO4)(OH) · 5H2O
Oⓘ RozeniteFeSO4 · 4H2O
Oⓘ RutileTiO2
Oⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Oⓘ ScoleciteCaAl2Si3O10 · 3H2O
Oⓘ StarkeyiteMgSO4 · 4H2O
Oⓘ StelleriteCa4(Si28Al8)O72 · 28H2O
Oⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Oⓘ SzomolnokiteFeSO4 · H2O
Oⓘ TitaniteCaTiO(SiO4)
Oⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Oⓘ VarisciteAlPO4 · 2H2O
Oⓘ WairakiteCa(Al2Si4O12) · 2H2O
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
Oⓘ MeniayloviteCa4[(SO4)(SiF6)(AlF6)]F · 12H2O
Oⓘ Hematite var. Titanohematite(Fe,Ti)2O3
FFluorine
Fⓘ MeniayloviteCa4[(SO4)(SiF6)(AlF6)]F · 12H2O
NaSodium
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Naⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Naⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Naⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Naⓘ NatroaluniteNaAl3(SO4)2(OH)6
Naⓘ NatrojarositeNaFe3(SO4)2(OH)6
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Mgⓘ EpsomiteMgSO4 · 7H2O
Mgⓘ Hypersthene(Mg,Fe)SiO3
Mgⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mgⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Mgⓘ StarkeyiteMgSO4 · 4H2O
AlAluminium
Alⓘ K Feldspar var. AdulariaKAlSi3O8
Alⓘ AluniteKAl3(SO4)2(OH)6
Alⓘ AlunogenAl2(SO4)3 · 17H2O
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ HalotrichiteFe2+Al2(SO4)4 · 22H2O
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Alⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
Alⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Alⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Alⓘ NatroaluniteNaAl3(SO4)2(OH)6
Alⓘ PrehniteCa2Al2Si3O10(OH)2
Alⓘ RostiteAl(SO4)(OH) · 5H2O
Alⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Alⓘ ScoleciteCaAl2Si3O10 · 3H2O
Alⓘ StelleriteCa4(Si28Al8)O72 · 28H2O
Alⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Alⓘ VarisciteAlPO4 · 2H2O
Alⓘ WairakiteCa(Al2Si4O12) · 2H2O
Alⓘ MeniayloviteCa4[(SO4)(SiF6)(AlF6)]F · 12H2O
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ K Feldspar var. AdulariaKAlSi3O8
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ AndraditeCa3Fe23+(SiO4)3
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Siⓘ CristobaliteSiO2
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Siⓘ Hypersthene(Mg,Fe)SiO3
Siⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
Siⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Siⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ QuartzSiO2
Siⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Siⓘ ScoleciteCaAl2Si3O10 · 3H2O
Siⓘ StelleriteCa4(Si28Al8)O72 · 28H2O
Siⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Siⓘ TitaniteCaTiO(SiO4)
Siⓘ WairakiteCa(Al2Si4O12) · 2H2O
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ MeniayloviteCa4[(SO4)(SiF6)(AlF6)]F · 12H2O
PPhosphorus
Pⓘ VarisciteAlPO4 · 2H2O
SSulfur
Sⓘ AluniteKAl3(SO4)2(OH)6
Sⓘ AlunogenAl2(SO4)3 · 17H2O
Sⓘ AnhydriteCaSO4
Sⓘ BaryteBaSO4
Sⓘ EpsomiteMgSO4 · 7H2O
Sⓘ FerricopiapiteFe3+0.67Fe43+(SO4)6(OH)2 · 20H2O
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ HalotrichiteFe2+Al2(SO4)4 · 22H2O
Sⓘ HaycockiteCu4Fe5S8
Sⓘ JarositeKFe33+(SO4)2(OH)6
Sⓘ NatroaluniteNaAl3(SO4)2(OH)6
Sⓘ NatrojarositeNaFe3(SO4)2(OH)6
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2O
Sⓘ RosickýiteS
Sⓘ RostiteAl(SO4)(OH) · 5H2O
Sⓘ RozeniteFeSO4 · 4H2O
Sⓘ StarkeyiteMgSO4 · 4H2O
Sⓘ Native SulphurS8
Sⓘ SzomolnokiteFeSO4 · H2O
Sⓘ TroiliteFeS
Sⓘ MeniayloviteCa4[(SO4)(SiF6)(AlF6)]F · 12H2O
KPotassium
Kⓘ K Feldspar var. AdulariaKAlSi3O8
Kⓘ AluniteKAl3(SO4)2(OH)6
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Kⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kⓘ JarositeKFe33+(SO4)2(OH)6
Kⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ AndraditeCa3Fe23+(SiO4)3
Caⓘ AnhydriteCaSO4
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
Caⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Caⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Caⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Caⓘ PrehniteCa2Al2Si3O10(OH)2
Caⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Caⓘ ScoleciteCaAl2Si3O10 · 3H2O
Caⓘ StelleriteCa4(Si28Al8)O72 · 28H2O
Caⓘ TitaniteCaTiO(SiO4)
Caⓘ WairakiteCa(Al2Si4O12) · 2H2O
Caⓘ WollastoniteCa3(Si3O9)
Caⓘ MeniayloviteCa4[(SO4)(SiF6)(AlF6)]F · 12H2O
TiTitanium
Tiⓘ AnataseTiO2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ RutileTiO2
Tiⓘ TitaniteCaTiO(SiO4)
Tiⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Tiⓘ Hematite var. Titanohematite(Fe,Ti)2O3
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ AndraditeCa3Fe23+(SiO4)3
Feⓘ Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ FerricopiapiteFe3+0.67Fe43+(SO4)6(OH)2 · 20H2O
Feⓘ GoethiteFe3+O(OH)
Feⓘ HalotrichiteFe2+Al2(SO4)4 · 22H2O
Feⓘ HaycockiteCu4Fe5S8
Feⓘ HematiteFe2O3
Feⓘ Hypersthene(Mg,Fe)SiO3
Feⓘ IlmeniteFe2+TiO3
Feⓘ JarositeKFe33+(SO4)2(OH)6
Feⓘ Maghemite(Fe3+0.67◻0.33)Fe23+O4
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ NatrojarositeNaFe3(SO4)2(OH)6
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2O
Feⓘ RozeniteFeSO4 · 4H2O
Feⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Feⓘ SzomolnokiteFeSO4 · H2O
Feⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Feⓘ TroiliteFeS
Feⓘ Hematite var. Titanohematite(Fe,Ti)2O3
CuCopper
Cuⓘ HaycockiteCu4Fe5S8
BaBarium
Baⓘ BaryteBaSO4

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Krafla
Wikidata ID:Q752994

Other Regions, Features and Areas containing this locality

Atlantic Ocean
Eurasian PlateTectonic Plate
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North America Plate

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References

Flink, Gustav (1886) Mineralogiska notiser I. 15. S. k. Kraflit från Krafla, Island [Mineralogical Notes I. 15. So-called Kraflit from Krafla, Iceland]. Bihang til Svenska vetenskapsakademien handlingar, 12 (3) 64-69
Kristmannsdóttir, H. (1981) Wollastonite from hydrothermally altered basaltic rocks in Iceland. Mineralogical Magazine, 44 (333) 95-99 doi:10.1180/minmag.1981.44.333.15
Bird, Dennis K., Schiffman, Peter, Elders, Wilfred A., Williams, Alan E., McDowell, S. Douglas (1984) Calc-silicate mineralization in active geothermal systems. Economic Geology, 79 (4) 671-695 doi:10.2113/gsecongeo.79.4.671
Carson III, George Lougheed (2015) Hydrothermal Acid-sulfate Alteration at Krafla and Námafjall, Ne Iceland: Implications for Gusev Crater and Meridiani Planum, Mars. The University of Wisconsin-Milwaukee.
Lévy, L.; Gibert, B.; Sigmundsson, F.; Deldicque, D.; Parat, F.; Hersir, G. P. (2019) Tracking Magmatic Hydrogen Sulfur Circulations Using Electrical Impedance: Complex Electrical Properties of Core Samples at the Krafla Volcano, Iceland. Journal of Geophysical Research: Solid Earth, 124 (3). p.2492-2509. doi:10.1029/2018jb016814
Escobedo, David, Patrier, Patricia, Beaufort, Daniel, Gibert, Benoit, Levy, Léa, Findling, Nathaniel, Mortensen, Annette (2021) Contribution of the Paragenetic Sequence of Clay Minerals to Re-Examination of the Alteration Zoning in the Krafla Geothermal System. Minerals, 11 (9) 935 doi:10.3390/min11090935
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