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Grua Tunnel, Grua, Lunner, Akershus, Norwayi
Regional Level Types
Grua TunnelTunnel
GruaVillage
LunnerMunicipality
AkershusCounty
NorwayCountry

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PhotosMapsSearch
01797090017271926787527.jpg
Stilbite Subgroup, etc.

Grua Tunnel, Grua, Lunner, Akershus, Norway
09642060017272034461343.jpg
Sphalerite, etc.

Grua Tunnel, Grua, Lunner, Akershus, Norway
05801090017361087189686.jpg
Chabazite, etc.

Grua Tunnel, Grua, Lunner, Akershus, Norway
01797090017271926787527.jpg
Stilbite Subgroup, etc.

Grua Tunnel, Grua, Lunner, Akershus, Norway
09642060017272034461343.jpg
Sphalerite, etc.

Grua Tunnel, Grua, Lunner, Akershus, Norway
05801090017361087189686.jpg
Chabazite, etc.

Grua Tunnel, Grua, Lunner, Akershus, Norway
01797090017271926787527.jpg
Stilbite Subgroup, etc.

Grua Tunnel, Grua, Lunner, Akershus, Norway
09642060017272034461343.jpg
Sphalerite, etc.

Grua Tunnel, Grua, Lunner, Akershus, Norway
Latitude & Longitude (WGS84):
60° 15' 29'' North , 10° 40' 26'' East
Latitude & Longitude (decimal):
60.25825,10.67410
GeoHash:
G#: u4xwfcstu
GRN:
N41E04
Type:
Tunnel
Köppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Grua1,477 (2013)0.7km
Jevnaker4,308 (2014)16.0km
Maura2,400 (2013)19.7km
Åneby1,373 (2013)21.7km
Gardermoen259 (2015)23.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
SteinklubbenSkjetten37km
Mindat Locality ID:
14383
Long-form identifier:
mindat:1:2:14383:0
GUID (UUID V4):
0
Other Languages:
Norwegian:
Gruatunnelen, Grua, Lunner, Akershus, Norge


A 1390 m long road tunnel along RV 4 going under Tveitmarkhøgda, Grua. Many collectable specimens were found during its construction. It was opened in 1992.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Habit: acicular
Colour: dark green
Description: Acicular microcrystals in Alpine cleft with epidote, chabazite, magnetite and pyrite.
References:
Former Lennart Närlund collectionIdentified by Harold Moritz: Visual Identification
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Apophyllite Group'
Formula: AB4[Si8O22]X · 8H2O
ⓘ Calcite
Formula: CaCO3
ⓘ 'Chabazite'
ⓘ 'Chlorite Group'
ⓘ Cosalite
Formula: Pb2Bi2S5
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Fluorite
Formula: CaF2
ⓘ Galena
Formula: PbS
References:
Knut Edvard Larsen collection nr 3610Identified by Knut Edvard Larsen: Visual Identification
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
Habit: massive
Colour: metallic black
Description: Poorly crystallized material in Alpine cleft with epidote, chabazite and pyrite.
References:
Former Lennart Närlund collectionIdentified by Harold Moritz: Visual Identification
ⓘ Natrolite
Formula: Na2Al2Si3O10 · 2H2O
ⓘ Prehnite
Formula: Ca2Al2Si3O10(OH)2
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Sphalerite
Formula: ZnS
ⓘ 'Stilbite Subgroup'
Formula: M6-7[Al8-9Si27-28O72] · nH2O

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
ⓘCosalite2.JB.10Pb2Bi2S5
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘPrehnite9.DP.20Ca2Al2Si3O10(OH)2
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘNatrolite9.GA.05Na2Al2Si3O10 · 2H2O
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
Unclassified
ⓘ'Apophyllite Group'-AB4[Si8O22]X · 8H2O
ⓘ'Chabazite'-
ⓘ'Chlorite Group'-
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ Apophyllite GroupAB4[Si8O22]X · 8H2O
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ NatroliteNa2Al2Si3O10 · 2H2O
Hⓘ PrehniteCa2Al2Si3O10(OH)2
Hⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Apophyllite GroupAB4[Si8O22]X · 8H2O
Oⓘ CalciteCaCO3
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ NatroliteNa2Al2Si3O10 · 2H2O
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ QuartzSiO2
Oⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Oⓘ Garnet GroupX3Z2(SiO4)3
FFluorine
Fⓘ FluoriteCaF2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ NatroliteNa2Al2Si3O10 · 2H2O
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
Alⓘ NatroliteNa2Al2Si3O10 · 2H2O
Alⓘ PrehniteCa2Al2Si3O10(OH)2
Alⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Apophyllite GroupAB4[Si8O22]X · 8H2O
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
Siⓘ NatroliteNa2Al2Si3O10 · 2H2O
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ QuartzSiO2
Siⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Siⓘ Garnet GroupX3Z2(SiO4)3
SSulfur
Sⓘ CosalitePb2Bi2S5
Sⓘ GalenaPbS
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ FluoriteCaF2
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
Caⓘ PrehniteCa2Al2Si3O10(OH)2
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
ZnZinc
Znⓘ SphaleriteZnS
PbLead
Pbⓘ CosalitePb2Bi2S5
Pbⓘ GalenaPbS
BiBismuth
Biⓘ CosalitePb2Bi2S5

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Norway
ScandinaviaRegion

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References

Raade, Gunnar (1993) Two new localities of Cosalite. Mineralogisk-Geologisk Museum - Universitetet i Oslo - Interne notater, Geologisk Museums venner. 177
Wiik, Geir Henning (2012) Møte mellom riksvei 4 og riksvei 35 på grua: Et geologisk veikryss. Norsk Bergverksmuseum Skrift, 49. 125-133
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