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Sapphirine locality, Ivesdalsfjellet, Vikeså, Bjerkreim, Rogaland, Norwayi
Regional Level Types
Sapphirine locality- not defined -
Ivesdalsfjellet- not defined -
Vikeså- not defined -
BjerkreimMunicipality
RogalandCounty
NorwayCountry

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Name(s) in local language(s):Safirin-forekomsten, Ivesdalsfjellet, Vikeså, Bjerkreim, Rogaland, Norge
Latitude & Longitude (WGS84): 58° 41' 36'' North , 6° 10' 37'' East
Latitude & Longitude (decimal): 58.69339,6.17713
GeoHash:G#: u4kmusf1c
Köppen climate type:Cfc : Subpolar oceanic climate


A 400m long and 2 m thick folded layer rich in euhedral sapphirine crystals in a lens with various garnet bearing folded migmatites (cordierite-spinel-and garnet-cordierite-hypersthene granofelses). The rock is medium-grained except the sapphirine (about 20 % of the rock) which occurs in about 2 cm long lath-shaped crystals.
The locality is now closed for collecting, protected as area of particular geological interest.

Regions containing this locality

Scandinavia

Region - 2,032 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


8 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!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Description: small grains
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
Diaspore
Formula: AlO(OH)
Description: Found as retrograde formed along the rims of hercynite grains.
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
Enstatite
Formula: MgSiO3
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
Enstatite var: Bronzite
Formula: (Mg,Fe2+)2[SiO3]2
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
Hercynite
Formula: Fe2+Al2O4
Colour: green
Description: Mg-rich hercynite
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
'K Feldspar'
Description: perthitic
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
'Migmatite'
Reference: Hermans, G. A. E. M. ; Hakestege, A. L. ; Jansen, J. B. H. & Poorter, R. P. E. (1976): Sapphirine occurrence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
Sapphirine
Formula: Mg4(Mg3Al9)O4[Si3Al9O36]
Habit: euhedrale prismatic crystals
Description: Crystals often mantled by bronzite
Reference: Hermans, G. A. E. M. et al. (1976): Sapphirine occurence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Diaspore4.FD.10AlO(OH)
Hercynite4.BB.05Fe2+Al2O4
Magnetite4.BB.05Fe2+Fe3+2O4
Group 9 - Silicates
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Enstatite9.DA.05MgSiO3
var: Bronzite9.DA.05(Mg,Fe2+)2[SiO3]2
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Sapphirine9.DH.45Mg4(Mg3Al9)O4[Si3Al9O36]
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
K Feldspar-
Migmatite-

List of minerals arranged by Dana 8th Edition classification

Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Diaspore6.1.1.1AlO(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Hercynite7.2.1.3Fe2+Al2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Enstatite65.1.2.1MgSiO3
Group 69 - INOSILICATES Chains with Side Branches or Loops
Chains with Side Branches or Loops with P>2
Sapphirine69.2.1b.1Mg4(Mg3Al9)O4[Si3Al9O36]
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
Enstatite
var: Bronzite
-(Mg,Fe2+)2[SiO3]2
'K Feldspar'-
'Migmatite'-
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
H DiasporeAlO(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
OOxygen
O Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O DiasporeAlO(OH)
O EnstatiteMgSiO3
O HercyniteFe2+Al2O4
O MagnetiteFe2+Fe23+O4
O MuscoviteKAl2(AlSi3O10)(OH)2
O PhlogopiteKMg3(AlSi3O10)(OH)2
O SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
MgMagnesium
Mg Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg EnstatiteMgSiO3
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
AlAluminium
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al DiasporeAlO(OH)
Al HercyniteFe2+Al2O4
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
SiSilicon
Si Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si EnstatiteMgSiO3
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K PhlogopiteKMg3(AlSi3O10)(OH)2
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
FeIron
Fe Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe HercyniteFe2+Al2O4
Fe MagnetiteFe2+Fe23+O4

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Proterozoic
541 - 2500 Ma



ID: 3186372
Proterozoic crystalline metamorphic rocks

Age: Proterozoic (541 - 2500 Ma)

Lithology: Granitoid gneiss; orthogneiss/paragneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Mesoproterozoic - Paleoproterozoic
1000 - 2500 Ma



ID: 3130876
Proterozoic I granite

Age: Proterozoic (1000 - 2500 Ma)

Description: undifferentiated metamorphic

Lithology: Major:{granite}, Minor{granodiorite-diorite group,meta-granite,meta-granodiorite-diorite group}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Hermans, G. A. E. M. ; Hakestege, A. L. ; Jansen, J. B. H. & Poorter, R. P. E. (1976): Sapphirine occurrence near Vikeså in Rogaland, southwestern Norway. Norsk Geologisk Tidskrift 56 (4): 397-412
Maijer, C., Hermans, G. A. E. M., Tobi, A. C. & Jansen, J. B. H. (1987): Day 8- The metamorphic envelope of the Rogaland intrusive complex (continuation). in Majier, C. & Padget, P. (eds) (1987): The geology of southernmost Norway: an excursion guide. Norges Geologiske Undersøkelse Special publication no. 1 , 81-87

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