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Mørkhøgda Pegmatite, Gjerstad, Aust-Agder, Norway

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Name(s) in local language(s):Mørkhøgda (Mørkhöiden), Gjerstad kommune, Aust-Agder fylke, Norge
Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 58° North , 8° East (est.)
Margin of Error:~15km
Locality type:Pegmatite
Köppen climate type:Dfb : Warm-summer humid continental climate


Granite-pegmatite in the northern part of Gjerstad.

It has not been possible to verify the coordinates, but they seem to be wrong.

They are visible at the locality page, but are not visible in the editor.

58° 50' 45'' North , 9° 4' 10'' East (est.)

This corresponds with 58.8458,9.0694961 ,which is a hill south of Gjerstad near the eastern border of the municipality.

Regions containing this locality

Scandinavia

Region - 2,024 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
Formula: Na(AlSi3O8)
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16( p. 14)
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16( p. 14)
Beryl
Formula: Be3Al2(Si6O18)
Habit: masses up to 20 cm in diameter
Colour: yellow,green
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16
'Fergusonite'
Description: Bjørlykke (1937) describes small fergusonite crystals as inclusions in beryl from this locality.
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16
'Microlite Group'
Formula: A2-mTa2X6-wZ-n
Habit: lenseshaped nodules and ill-defined crystals
Description: about 1 mm in diameter
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16, p. 14
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16
'Pegmatite'
Reference: Automatically generated from locality name
Quartz
Formula: SiO2
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Description: Described as "black tourmaline by BJørlykke (1937)
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16
Zircon
Formula: Zr(SiO4)
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16
Zircon var: Alvite
Formula: Zr(SiO4)
Reference: Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Euxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Microlite Group4.00.A2-mTa2X6-wZ-n
Quartz4.DA.05SiO2
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
var: Cleavelandite9.FA.35Na(AlSi3O8)
Beryl9.CJ.05Be3Al2(Si6O18)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Zircon9.AD.30Zr(SiO4)
var: Alvite9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
Fergusonite-
Pegmatite-

List of minerals arranged by Dana 8th Edition classification

Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
A2B2O6(O,OH,F)
'Microlite Group'8.2.2.1A2-mTa2X6-wZ-n
AB2O6
Euxenite-(Y)8.3.8.2(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Rocks, etc.
var: Cleavelandite-Na(AlSi3O8)
'Fergusonite'-
'Pegmatite'-
Zircon
var: Alvite
-Zr(SiO4)

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O AlbiteNa(AlSi3O8)
O Zircon (var: Alvite)Zr(SiO4)
O BerylBe3Al2(Si6O18)
O Albite (var: Cleavelandite)Na(AlSi3O8)
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O SpessartineMn32+Al2(SiO4)3
O ZirconZr(SiO4)
NaSodium
Na AlbiteNa(AlSi3O8)
Na Albite (var: Cleavelandite)Na(AlSi3O8)
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al AlbiteNa(AlSi3O8)
Al BerylBe3Al2(Si6O18)
Al Albite (var: Cleavelandite)Na(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al SpessartineMn32+Al2(SiO4)3
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Zircon (var: Alvite)Zr(SiO4)
Si BerylBe3Al2(Si6O18)
Si Albite (var: Cleavelandite)Na(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si SpessartineMn32+Al2(SiO4)3
Si ZirconZr(SiO4)
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TiTitanium
Ti Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
MnManganese
Mn SpessartineMn32+Al2(SiO4)3
FeIron
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
YYttrium
Y Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ZrZirconium
Zr Zircon (var: Alvite)Zr(SiO4)
Zr ZirconZr(SiO4)
NbNiobium
Nb Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
CeCerium
Ce Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TaTantalum
Ta Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ta Microlite GroupA2-mTa2X6-wZ-n
ThThorium
Th Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
UUranium
U Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16


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