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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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Latitude & Longitude (WGS84):
65° 42' 51'' North , 16° 43' 49'' West
Latitude & Longitude (decimal):
65.71422,-16.73038
GeoHash:
G#: gesjg6cm1
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):
39de42cd-d8e3-4079-aa57-5357467e61de
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

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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: α-Fe3+O(OH)
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Halotrichite
Formula: FeAl2(SO4)4 · 22H2O
ⓘ Haycockite
Formula: Cu4Fe5S8
ⓘ Hematite
Formula: Fe2O3
ⓘ Hematite var. Titanohematite
ⓘ '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
ⓘ 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, G. L. (2015). Hydrothermal Acid-sulfate Alteration at Krafla and Námafjall, Ne Iceland: Implications for Gusev Crater and Meridiani Planum, Mars. Masters thesis, 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), 2492-2509.
Escobedo, D., Patrier, P., Beaufort, D., Gibert, B., Levy, L., Findling, N., & Mortensen, A. (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.
ⓘ 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
ⓘ Sulphur
Formula: S8
ⓘ Szomolnokite
Formula: FeSO4 · H2O
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ Troilite
Formula: FeS
ⓘ Variscite
Formula: AlPO4 · 2H2O
ⓘ Wairakite
Formula: Ca(Al2Si4O12) · 2H2O
ⓘ Wollastonite
Formula: Ca3(Si3O9)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘRosickýite1.CC.05S
ⓘ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
ⓘGoethite4.00.α-Fe3+O(OH)
ⓘMagnetite
var. Titanium-bearing Magnetite		4.BB.05Fe2+(Fe3+,Ti)2O4
ⓘ4.BB.05Fe2+Fe3+2O4
ⓘMaghemite4.BB.15(Fe3+0.67◻0.33)Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘHematite4.CB.05Fe2O3
ⓘvar. Titanohematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
ⓘCristobalite4.DA.15SiO2
ⓘRutile4.DB.05TiO2
ⓘAnatase4.DD.05TiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘBaryte7.AD.35BaSO4
ⓘNatrojarosite7.BC.10NaFe3(SO4)2(OH)6
ⓘNatroalunite7.BC.10NaAl3(SO4)2(OH)6
ⓘAlunite7.BC.10KAl3(SO4)2(OH)6
ⓘJarosite7.BC.10KFe3+3(SO4)2(OH)6
ⓘSzomolnokite7.CB.05FeSO4 · H2O
ⓘStarkeyite7.CB.15MgSO4 · 4H2O
ⓘRozenite7.CB.15FeSO4 · 4H2O
ⓘEpsomite7.CB.40MgSO4 · 7H2O
ⓘAlunogen7.CB.45Al2(SO4)3 · 17H2O
ⓘRhomboclase7.CB.55(H5O2)Fe3+(SO4)2 · 2H2O
ⓘHalotrichite7.CB.85FeAl2(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.15CaTi(SiO4)O
ⓘ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
ⓘ'Chlorite Group'-
ⓘ'Chabazite'-
ⓘ'Hypersthene'-(Mg,Fe)SiO3
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O
ⓘ'K Feldspar'-
ⓘ'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · 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ⓘ Goethiteα-Fe3+O(OH)
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ HalotrichiteFeAl2(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ⓘ Goethiteα-Fe3+O(OH)
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HalotrichiteFeAl2(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ⓘ TitaniteCaTi(SiO4)O
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
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ⓘ HalotrichiteFeAl2(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ⓘ TitaniteCaTi(SiO4)O
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ⓘ HalotrichiteFeAl2(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ⓘ 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ⓘ TitaniteCaTi(SiO4)O
Caⓘ WairakiteCa(Al2Si4O12) · 2H2O
Caⓘ WollastoniteCa3(Si3O9)
Caⓘ MeniayloviteCa4[(SO4)(SiF6)(AlF6)]F · 12H2O
TiTitanium
Tiⓘ AnataseTiO2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ RutileTiO2
Tiⓘ TitaniteCaTi(SiO4)O
Tiⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
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ⓘ Goethiteα-Fe3+O(OH)
Feⓘ HalotrichiteFeAl2(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
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
EuropeContinent

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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.
Economic Geology (1984): 79: 671-695.
Carson, G. L. (2015) Hydrothermal Acid-sulfate Alteration at Krafla and Námafjall, Ne Iceland: Implications for Gusev Crater and Meridiani Planum, Mars. Masters thesis, 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), 2492-2509.
Escobedo, D., Patrier, P., Beaufort, D., Gibert, B., Levy, L., Findling, N., & Mortensen, A. (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.
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