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Øynaheia (Ongeltjern; "Herefoss"), Øyna, Froland, Agder, Norwayi
Regional Level Types
Øynaheia (Ongeltjern; "Herefoss")Outcrop
ØynaFarm
FrolandMunicipality
AgderCounty
NorwayCountry

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Latitude & Longitude (WGS84):
58° 31' 7'' North , 8° 25' 18'' East
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Rykene647 (2013)17.5km
Arendal30,916 (2017)21.3km
Fevik4,989 (2014)21.5km
Grimstad9,561 (2017)22.2km
Birkeland2,254 (2010)23.6km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Sørlandets GeologiforeningKristiansand47km
Mindat Locality ID:
219537
Long-form identifier:
mindat:1:2:219537:0
GUID (UUID V4):
0
Other Languages:
Norwegian:
Øynaheia, Froland, Agder, Norge


Skarn. Locality found in the early 1980s. Known for groups of short-prismatic groups of crystals of fluorapatite, the crystals measured up to 4cm long.

Apatite specimens from this locality have erroneously been labelled chlorapatite. Nordrum et al. (2010) showed them to be fluorapatite.

Specimens from this locality are labelled as Øynaheia, but sometimes (not correctly) often labelled as coming from Herefoss (Herefoss is the nearest larger village located in the neighbour municipality, Birkenes). It is located west of the small pond Tiksletjenn.

Note: This is not identical with the Øynaheiaveien road cut west of Mjåvatn. The coordinates for this locality given in the German website Mineralienatlas are not correct. An investigation is currently going on to establish the correct coordinates.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Calcite
Formula: CaCO3
Diopside
Formula: CaMgSi2O6
Fluorapatite
Formula: Ca5(PO4)3F
Magnetite
Formula: Fe2+Fe3+2O4
Rutile
Formula: TiO2
Description: as pseudomorphs after rutile
Titanite
Formula: CaTiO(SiO4)

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
Titanite9.AG.15CaTiO(SiO4)
Diopside9.DA.15CaMgSi2O6
Actinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2

List of minerals for each chemical element

HHydrogen
H Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
CCarbon
C CalciteCaCO3
OOxygen
O Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
O CalciteCaCO3
O DiopsideCaMgSi2O6
O FluorapatiteCa5(PO4)3F
O MagnetiteFe2+Fe23+O4
O RutileTiO2
O TitaniteCaTiO(SiO4)
FFluorine
F FluorapatiteCa5(PO4)3F
MgMagnesium
Mg Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mg DiopsideCaMgSi2O6
SiSilicon
Si Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Si DiopsideCaMgSi2O6
Si TitaniteCaTiO(SiO4)
PPhosphorus
P FluorapatiteCa5(PO4)3F
CaCalcium
Ca Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Ca CalciteCaCO3
Ca DiopsideCaMgSi2O6
Ca FluorapatiteCa5(PO4)3F
Ca TitaniteCaTiO(SiO4)
TiTitanium
Ti RutileTiO2
Ti TitaniteCaTiO(SiO4)
FeIron
Fe Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Fe MagnetiteFe2+Fe23+O4

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Norway

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.

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