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Aegirine locality, Hortavær Complex, Leka, Trøndelag, Norwayi
Regional Level Types
Aegirine localityOutcrop
Hortavær ComplexGroup of Islands
LekaMunicipality
TrøndelagCounty
NorwayCountry

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Latitude & Longitude (WGS84):
65° 12' 23'' North , 11° 25' 54'' East
Latitude & Longitude (decimal):
65.20641,11.43192
GRN:
N44E04
Type:
Outcrop
Age:
465 Ma
Geologic Time:
Middle Ordovician
Dating method:
U-Pb
Reference for age:
Barnes et al. (2006) New U-Pb geochronology for the Helgeland Nappe Complex (HNC), Norwegian Caledonides: constraints and conundrums. Geol. Soc. Am. Abst. with Programs 38, 419.
Nearest Settlements:
PlacePopulationDistance
Kolvereid1,467 (2018)38.7km
Rørvik2,615 (2018)39.3km
Mindat Locality ID:
216052
Long-form identifier:
mindat:1:2:216052:1
GUID (UUID V4):
0
Other/historical names associated with this locality:
Nord-Trøndelag
Other Languages:
Norwegian:
Ægirinforekomsten, Hortavær, Leka, Trøndelag, Norge


A aegirine locality on a unnamed (?) small skerry W of Ørnholmen. Belongs to the Hortavær Igneous Complex. The aegirine occurs in veins near skarn-like assemblages in a zone where dioritic sheets where emplaced into syenite (Prestvik & Barnes 2007)

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


5 valid minerals.

Detailed Mineral List:

ⓘ Aegirine
Formula: NaFe3+Si2O6
Habit: elongated prismatic xls to 4mm
Colour: Apple-green
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ 'K Feldspar'
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘIlmenite4.CB.05Fe2+TiO3
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'K Feldspar'-

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ IlmeniteFe2+TiO3
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SSulfur
Sⓘ PyriteFeS2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ CalciteCaCO3
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
Tiⓘ IlmeniteFe2+TiO3
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ IlmeniteFe2+TiO3
Feⓘ PyriteFeS2

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
ScandinaviaRegion

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References

foreninger.uio.no (n.d.) https://foreninger.uio.no/ngf/ngt/pdfs/NJG_87_451-456.pdf
Prestvik, Tore, Barnes, Calvin G. (2007) A new occurrence of aegirine in Norway. Norwegian Journal of Geology (Norsk Geologisk Tidsskrift), 87 (4) 451-456
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