Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Bardane, Fjørtofta, Haram, Ålesund, Møre og Romsdal, Norwayi
Regional Level Types
BardaneOutcrop
FjørtoftaIsland
HaramMunicipality (Former)
ÅlesundMunicipality
Møre og RomsdalCounty
NorwayCountry

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Latitude & Longitude (WGS84):
62° 42' 23'' North , 6° 19' 54'' East
Latitude & Longitude (decimal):
62.70656,6.33175
GRN:
N42E03
Type:
Outcrop
Age:
1360 ± 5 Ma
Geologic Time:
Ectasian
Dating method:
Lu-Hf
Reference for age:
Cutts, J. A. (2019) Geochronology of ultrahigh-pressure rocks to interrogate the evolution of the continental crust and mantle. Thesis, University of British Columbia.
Köppen climate type:
Cfc : Subpolar oceanic climate
Nearest Settlements:
PlacePopulationDistance
Myklebust454 (2013)6.6km
Austnes385 (2013)8.3km
Steinshamn475 (2014)11.1km
Brattvåg2,146 (2014)13.2km
Roald708 (2013)17.4km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Ålesund og Omegn GeologiforeningÅlesund28km
Mindat Locality ID:
72589
Long-form identifier:
mindat:1:2:72589:2
GUID (UUID V4):
0
Other Languages:
Norwegian:
Bardane, Fjørtofta, Haram, Ålesund, Møre og Romsdal, Norge


Western Gneiss Region of Norway. LT-UHP mantellic (> 13 km) websterite pod.
UHP diamond-bearing garnet-kyanite gneisses and derived kyanite-garnet-sillimanite-biotite-plagioclase mylonites (sinistral shear fabrics).

Microdiamonds has been found as inclusions in spinels within pyrope megacrysts in large orthopyroxene crystals in a mantle-derived peridotite lens.They were formed from infiltrating UHP-LT fluids.



Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


9 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:

ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ 'Chrome-Spinel (of Dana)'
ⓘ 'Clinopyroxene Subgroup'
ⓘ Diamond
Formula: C
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Diopside var. Chromium-bearing Diopside
Formula: Ca(Mg,Cr)Si2O6
ⓘ Enstatite
Formula: Mg2Si2O6
ⓘ 'Fayalite-Forsterite Series'
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Kyanite
Formula: Al2(SiO4)O
ⓘ 'Monazite Group'
Formula: REE(PO4)
Description: In UHP gneisses.
ⓘ Nahcolite
Formula: NaHCO3
Description: Found inn fluid inclusions in minerals from microdiamond-bearing granulite.
ⓘ 'Orthopyroxene Subgroup'
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrope
Formula: Mg3Al2(SiO4)3
ⓘ Sillimanite
Formula: Al2(SiO4)O
ⓘ Spinel
Formula: MgAl2O4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘDiamond1.CB.10aC
Group 4 - Oxides and Hydroxides
ⓘSpinel4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
ⓘNahcolite5.AA.15NaHCO3
Group 9 - Silicates
ⓘPyrope9.AD.25Mg3Al2(SiO4)3
ⓘSillimanite9.AF.05Al2(SiO4)O
ⓘKyanite9.AF.15Al2(SiO4)O
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘDiopside
var. Chromium-bearing Diopside		9.DA.15Ca(Mg,Cr)Si2O6
ⓘ9.DA.15CaMgSi2O6
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Chrome-Spinel (of Dana)'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Orthopyroxene Subgroup'-

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ NahcoliteNaHCO3
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CCarbon
Cⓘ DiamondC
Cⓘ NahcoliteNaHCO3
OOxygen
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Oⓘ DiopsideCaMgSi2O6
Oⓘ EnstatiteMg2Si2O6
Oⓘ KyaniteAl2(SiO4)O
Oⓘ Monazite GroupREE(PO4)
Oⓘ NahcoliteNaHCO3
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ PyropeMg3Al2(SiO4)3
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ SpinelMgAl2O4
Oⓘ Fayalite-Forsterite Series
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Garnet GroupX3Z2(SiO4)3
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ NahcoliteNaHCO3
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ PyropeMg3Al2(SiO4)3
Mgⓘ SpinelMgAl2O4
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ KyaniteAl2(SiO4)O
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ PyropeMg3Al2(SiO4)3
Alⓘ SillimaniteAl2(SiO4)O
Alⓘ SpinelMgAl2O4
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Siⓘ DiopsideCaMgSi2O6
Siⓘ EnstatiteMg2Si2O6
Siⓘ KyaniteAl2(SiO4)O
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ PyropeMg3Al2(SiO4)3
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ Fayalite-Forsterite Series
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Garnet GroupX3Z2(SiO4)3
PPhosphorus
Pⓘ Monazite GroupREE(PO4)
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Caⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Caⓘ DiopsideCaMgSi2O6
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CrChromium
Crⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ Fayalite-Forsterite Series

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
Norway
ScandinaviaRegion

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.

References

(1993) Norges første diamanter- Oppsiktsvekkende funn på Sunnmøre [Norway's first diamonds - Sensational discovery in Sunnmøre]. Bergverks-nytt [Scandinavian journal of mining and quarrying], 39 (5). 6-7
(1994) Diamantene på Fjørtoft bekreftet [The diamonds at Fjørtoft confirmed]. Bergverks-nytt [Scandinavian journal of mining and quarrying], 40 (3). 21
Dobrzhinetskaya, Larissa F., Eide, Elizabeth A., Larsen, Rune B., Sturt, Brian A., Trønnes, Reidar G., Smith, David C., Taylor, Wayne R., Posukhova, Tatjana V. (1995) Microdiamond in high-grade metamorphic rocks of the Western Gneiss region, Norway. Geology, 23 (7) 597 doi:10.1130/0091-7613(1995)023<0597:mihgmr>2.3.co;2
Larsen, Rune B., Eide, Elizabeth A., Burke, Ernst A. J. (1998) Evolution of metamorphic volatiles during exhumation of microdiamond-bearing granulites in the Western Gneiss Region, Norway. Contributions to Mineralogy and Petrology, 133 (1) 106-121 doi:10.1007/s004100050441
van Roermund, H. L., Carswell, D. A., Drury, M. R., Heijboer, T. C. (2002) Microdiamonds in a megacrystic garnet websterite pod from Bardane on the island of Fjørtoft, western Norway: Evidence for diamond formation in mantle rocks during deep continental subduction. Geology, 30 (11) 959-962 doi:10.1130/0091-7613(2002)030<0959:MIAMGW>2.0.CO;2
Carswell, D. A., Brueckner, H. K., Cuthbert, S. J., Mehta, K., O'Brien, P. J. (2003) The timing of stabilisation and the exhumation rate for ultra-high pressure rocks in the Western Gneiss Region of Norway. Journal of Metamorphic Geology, 21 (6) 601-612 doi:10.1046/j.1525-1314.2003.00467.x
Carswell, Dennis A., van Roermund, Herman L.M. (2005) On multi-phase mineral inclusions associated with microdiamond formation in mantle-derived peridotite lens at Bardane on Fjørtoft, west Norway. European Journal of Mineralogy, 17 (1) 31-42 doi:10.1127/0935-1221/2005/0017-0031
Cutts, Jamie Alistair (2019) Geochronology of ultrahigh-pressure rocks to interrogate the evolution of the continental crust and mantle. University of British Columbia. doi:10.14288/1.0378408
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