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Hvalfjörður, Hvalfjarðarsveit, Western Region, Icelandi
Regional Level Types
Hvalfjörður- not defined -
HvalfjarðarsveitMunicipality
Western RegionRegion
IcelandCountry

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Name in Icelandic:Hvalfjörður, Hvalfjarðarsveit, Vesturland, Ísland
Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 64° North , 21° West (est.)
Margin of Error:~29km
Köppen climate type:Cfc : Subpolar oceanic climate


An area located about 40 km North of the capital, Reykjavik, welknown for zeolites. Late Tertiary to early Quaternary flood basalts with minor intercalations of hyaloclastites and rhyolites. The basalts are affected by progressive low-temperature metamorphism, caused by the burial of the lava succession and higher heat flow from nearby central volcanoes (Weisenberger & Selbekk 2009). Zeolites, quartz and phyllosilicates occurs as result of low-grade metamorphism of basaltic lavas on the NW and W side of the fjord Hvalfjörður (Hvalfjördur).

The southern part of the fjord belongs to the Capital Region (Höfuðborgarsvæðið) and the northern side to the Western Region (Vesturland).

Regions containing this locality

North America PlateTectonic Plate
EuropeContinent

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Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

11 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Detailed Mineral List:

Analcime
Formula: Na(AlSi2O6) · H2O
Reference: Knut Edvard Larsen collection
'Apophyllite'
Reference: Personally collected by Günter Frenz
Calcite
Formula: CaCO3
Habit: Rhombic
Reference: Tschernich, R. W. (1992): Zeolites of the world. Geoscience Press, Phoenix, Arizona. [p.524]; Robinson, G. W. (1986): What's new in minerals? Mineralogical Record: 17: 339-342 [p.340]
'Chabazite'
'Chlorite Group'
Reference: Weisenberger, T. & Selbekk, R.S. (2009): Multi stage zeolite facies mineralization in the Hvalfjördur area, Iceland. International Journal of Earth Sciences. 98 (5): 985-999
Epistilbite
Formula: CaAl2Si6O16 · 5H2O
'Erionite'
Reference: Robinson, G. W. (1986): What's new in minerals? Mineralogical Record: 17: 339-342 [p.340]
Gyrolite
Formula: NaCa16Si23AlO60(OH)8 · 14H2O
Reference: Personally collected by Günter Frenz
'Heulandite subgroup'
Ilvaite
Formula: CaFe3+Fe2+2(Si2O7)O(OH)
Reference: Tschernich, R. W. (1992): Zeolites of the world. Geoscience Press, Phoenix, Arizona. [p.524]; Robinson, G. W. (1986): What's new in minerals? Mineralogical Record: 17: 339-342 [p.340]
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Reference: Tschernich, R. W. (1992): Zeolites of the world. Geoscience Press, Phoenix, Arizona. [p.524]
Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
Pyrite
Formula: FeS2
Reference: Personally collected by Günter Frenz
Quartz
Formula: SiO2
Quartz var: Chalcedony
Formula: SiO2
Reference: Weisenberger, T. & Selbekk, R.S. (2009): Multi stage zeolite facies mineralization in the Hvalfjördur area, Iceland. International Journal of Earth Sciences. 98 (5): 985-999
Scolecite
Formula: CaAl2Si3O10 · 3H2O
Reference: Personally collected by Günter Frenz
'Stilbite subgroup'
'Thomsonite'
Reference: Personally collected by Günter Frenz
Yugawaralite
Formula: CaAl2Si6O16 · 4H2O
Habit: Tabular, bladelike
Colour: Colorless, Transparent,
Reference: Tschernich, R. W. (1992): Zeolites of the world. Geoscience Press, Phoenix, Arizona. [p.524]; Robinson, G. W. (1986): What's new in minerals? Mineralogical Record: 17: 339-342 [p.340]

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Analcime9.GB.05Na(AlSi2O6) · H2O
Epistilbite9.GD.45CaAl2Si6O16 · 5H2O
Gyrolite9.EE.30NaCa16Si23AlO60(OH)8 · 14H2O
Ilvaite9.BE.07CaFe3+Fe2+2(Si2O7)O(OH)
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Mesolite9.GA.05Na2Ca2Si9Al6O30 · 8H2O
Scolecite9.GA.05CaAl2Si3O10 · 3H2O
Yugawaralite9.GB.15CaAl2Si6O16 · 4H2O
Unclassified Minerals, Rocks, etc.
'Apophyllite'-
'Chabazite'-
'Chlorite Group'-
'Erionite'-
'Heulandite subgroup'-
'Stilbite subgroup'-
'Thomsonite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
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
Ilvaite56.2.3.3CaFe3+Fe2+2(Si2O7)O(OH)
Group 73 - PHYLLOSILICATES Condensed Tetrahedral Sheets
Condensed Tetrahedral Sheets with double and single layers
Gyrolite73.2.2c.1NaCa16Si23AlO60(OH)8 · 14H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Epistilbite77.1.6.2CaAl2Si6O16 · 5H2O
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Mesolite77.1.5.4Na2Ca2Si9Al6O30 · 8H2O
Scolecite77.1.5.5CaAl2Si3O10 · 3H2O
Yugawaralite77.1.7.2CaAl2Si6O16 · 4H2O
Unclassified Minerals, Mixtures, etc.
'Apophyllite'-
'Chabazite'-
'Chlorite Group'-
'Erionite'-
'Heulandite subgroup'-
Quartz
var: Chalcedony
-SiO2
'Stilbite subgroup'-
'Thomsonite'-

List of minerals for each chemical element

HHydrogen
H YugawaraliteCaAl2Si6O16 · 4H2O
H LaumontiteCaAl2Si4O12 · 4H2O
H IlvaiteCaFe3+Fe22+(Si2O7)O(OH)
H EpistilbiteCaAl2Si6O16 · 5H2O
H ScoleciteCaAl2Si3O10 · 3H2O
H GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
H MesoliteNa2Ca2Si9Al6O30 · 8H2O
H AnalcimeNa(AlSi2O6) · H2O
CCarbon
C CalciteCaCO3
OOxygen
O YugawaraliteCaAl2Si6O16 · 4H2O
O CalciteCaCO3
O LaumontiteCaAl2Si4O12 · 4H2O
O IlvaiteCaFe3+Fe22+(Si2O7)O(OH)
O QuartzSiO2
O EpistilbiteCaAl2Si6O16 · 5H2O
O ScoleciteCaAl2Si3O10 · 3H2O
O GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
O Quartz (var: Chalcedony)SiO2
O MesoliteNa2Ca2Si9Al6O30 · 8H2O
O AnalcimeNa(AlSi2O6) · H2O
NaSodium
Na GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
Na MesoliteNa2Ca2Si9Al6O30 · 8H2O
Na AnalcimeNa(AlSi2O6) · H2O
AlAluminium
Al YugawaraliteCaAl2Si6O16 · 4H2O
Al LaumontiteCaAl2Si4O12 · 4H2O
Al EpistilbiteCaAl2Si6O16 · 5H2O
Al ScoleciteCaAl2Si3O10 · 3H2O
Al GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
Al MesoliteNa2Ca2Si9Al6O30 · 8H2O
Al AnalcimeNa(AlSi2O6) · H2O
SiSilicon
Si YugawaraliteCaAl2Si6O16 · 4H2O
Si LaumontiteCaAl2Si4O12 · 4H2O
Si IlvaiteCaFe3+Fe22+(Si2O7)O(OH)
Si QuartzSiO2
Si EpistilbiteCaAl2Si6O16 · 5H2O
Si ScoleciteCaAl2Si3O10 · 3H2O
Si GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
Si Quartz (var: Chalcedony)SiO2
Si MesoliteNa2Ca2Si9Al6O30 · 8H2O
Si AnalcimeNa(AlSi2O6) · H2O
SSulfur
S PyriteFeS2
CaCalcium
Ca YugawaraliteCaAl2Si6O16 · 4H2O
Ca CalciteCaCO3
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca IlvaiteCaFe3+Fe22+(Si2O7)O(OH)
Ca EpistilbiteCaAl2Si6O16 · 5H2O
Ca ScoleciteCaAl2Si3O10 · 3H2O
Ca GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
Ca MesoliteNa2Ca2Si9Al6O30 · 8H2O
FeIron
Fe IlvaiteCaFe3+Fe22+(Si2O7)O(OH)
Fe PyriteFeS2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
von Waltershausen, S. (1853) Über die Vulkanischen Gesteine in Sicilien und Island, und ihre submarine Umbildung. Göttingen 1853.
Betz, Volker (1981): Famous mineral localities: Zeolites from Iceland and the Faeroes. Mineralogical Record 12 (1), 5-26
Selbekk, R. S. & Mattsson, H. (2004): Zeolitt mineraliseringer i Hvalfjördur, Island. STEIN 31 (1),28-33
Weisenberger, T. (2005): Zeolite facies mineralisation in the Hvalfjördur area, Iceland. Diploma Thesis, University of Freiburg, Germany, xx pp.
Selbekk, R.S. & Weisenberger T. (2005): Stellerite from the Hvalfjördur area, Iceland. Jökull, ársrit Jöklarannsóknarfélags Íslands og Jarðfræðafélags Íslands. 55: 49-52
Schnorrer, G. (2006): Babingtonit - ein neues Mineral in den tholeyitischen Basalten der westlichen Fjorde Islands. Der Aufschluss, 57: 355-358
Weisenberger, T. & Selbekk, R. S. (2006): Die Zeolith-Fundstelle Hvalfjordur, Island. Mineralien-Welt. 17 (1): 50-56.
Weisenberger, T. & Selbekk, R.S. (2009): Multi stage zeolite facies mineralization in the Hvalfjordur area, Iceland. International Journal of Earth Sciences. 98 (5): 985-999, (DOI 10.1007/s00531-007-0296-6)

Localities in this Region
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