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Kûngnât complex, Arsuk Fjord, Sermersooq, Greenland, Denmark

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Latitude & Longitude (WGS84): 61° 13' North , 48° 25' West
Latitude & Longitude (decimal): 61.21667,-48.41667
GeoHash:G#: ffvs620hc
Locality type:Complex
Age:1219 ± 16 Ma
Geologic Time:Ectasian
Reference for age:Blaxland et al. 1995, cited in Stephenson, D. & Upton, B.J.G. (1982) Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46: 283-300
Köppen climate type:ET : Tundra
Other/historical names associated with this locality:Kûngnât Fjeld


The Kûngnât Complex is the westernmost complex in the Gardar Alkaline Province, of 2.5 x 5 km. It consists of two syenite stocks and a narrow ring dyke. The stock in the west contains peralkaline granites, the one in the east syenites, and the ring alkaline gabbro.

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Standard Detailed Strunz Dana Chemical Elements

Mineral List


19 valid minerals. 1 erroneous literature entry.

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!

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Alphabetical List Tree Diagram

Detailed Mineral List:

Aegirine
Formula: NaFe3+Si2O6
Reference: Stephenson, D. & Upton, B.J.G.(1982): Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46, 283-300
Amphibole Supergroup
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Stephenson, D. & Upton, B.J.G. (1982) Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46: 283-300
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
Reference: Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
'Apatite'
Reference: Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Reference: Stephenson, D. & Upton, B.J.G.(1982): Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46, 283-300
Astrophyllite
Formula: K2NaFe2+7Ti2Si8O28(OH)4F
Reference: Stephenson, D. & Upton, B.J.G.(1982): Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46, 283-300
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Stephenson, D. & Upton, B.J.G. (1982) Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46: 283-300
'Barkevikite'
Description: Discredited, see amphibole
Reference: Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
Chalcopyrite
Formula: CuFeS2
Reference: Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
'Clinopyroxene Subgroup'
Reference: Stephenson, D. & Upton, B.J.G. (1982) Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46: 283-300
Fayalite
Formula: Fe2+2SiO4
Reference: Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
'Fayalite-Forsterite Series'
Reference: Stephenson, D. & Upton, B.J.G.(1982): Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46, 283-300
'Feldspar Group'
Reference: Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
'Feldspar Group var: Perthite'
Reference: Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
Ferro-actinolite
Formula: ☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Reference: Stephenson, D. & Upton, B.J.G.(1982): Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46, 283-300
Ferro-edenite
Formula: {Na}{Ca2}{Fe2+5}(AlSi7O22)(OH)2
Reference: Stephenson, D. & Upton, B.J.G.(1982): Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46, 283-300
Ferro-richterite
Formula: {Na}{CaNa}{Fe2+5}(Si8O22)(OH)2
Reference: Stephenson, D. & Upton, B.J.G. (1982) Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46: 283-300
'Gabbro'
Reference: Stephenson, D. & Upton, B.J.G. (1982) Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46: 283-300
Hastingsite
Formula: {Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Reference: Stephenson, D. & Upton, B.J.G.(1982): Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46, 283-300
Hedenbergite
Formula: CaFe2+Si2O6
Reference: Stephenson, D. & Upton, B.J.G. (1982) Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46: 283-300
'Iddingsite'
Formula: MgO · Fe2O3 · 3SiO2·4H2O
Reference: Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
Ilmenite
Formula: Fe2+TiO3
Reference: Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
Pentlandite
Formula: (FexNiy)Σ9S8
Reference: Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Stephenson, D. & Upton, B.J.G.(1982): Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46, 283-300
'Quartz-syenite'
Reference: Stephenson, D. & Upton, B.J.G. (1982) Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46: 283-300
Riebeckite ?
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Description: only identified optically (see Stephenson & Upton (1982)
Reference: Stephenson, D. & Upton, B.J.G. (1982) Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46: 283-300
'Syenite'
Reference: Stephenson, D. & Upton, B.J.G. (1982) Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46: 283-300
Zircon
Formula: Zr(SiO4)
Reference: Stephenson, D. & Upton, B.J.G.(1982): Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46, 283-300

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Chalcopyrite'2.CB.10aCuFeS2
'Pentlandite'2.BB.15(FexNiy)Σ9S8
Group 4 - Oxides and Hydroxides
'Ilmenite'4.CB.05Fe2+TiO3
'Magnetite'4.BB.05Fe2+Fe3+2O4
Group 9 - Silicates
'Aegirine'9.DA.25NaFe3+Si2O6
'Annite'9.EC.20KFe2+3(AlSi3O10)(OH)2
'Arfvedsonite'9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
'Astrophyllite'9.DC.05K2NaFe2+7Ti2Si8O28(OH)4F
'Augite'9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
'Fayalite'9.AC.05Fe2+2SiO4
'Ferro-actinolite'9.DE.10☐{Ca2}{Fe2+5}(Si8O22)(OH)2
'Ferro-edenite'9.DE.15{Na}{Ca2}{Fe2+5}(AlSi7O22)(OH)2
'Ferro-richterite'9.DE.20{Na}{CaNa}{Fe2+5}(Si8O22)(OH)2
'Hastingsite'9.DE.15{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
'Hedenbergite'9.DA.15CaFe2+Si2O6
'Phlogopite'9.EC.20KMg3(AlSi3O10)(OH)2
'Riebeckite' ?9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
'Zircon'9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'-
'Barkevikite' ?-
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'var: Perthite'-
'Gabbro'-
'Iddingsite'-MgO · Fe2O3 · 3SiO2·4H2O
'Quartz-syenite'-
'Syenite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 9:8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Fayalite51.3.1.1Fe2+2SiO4
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Aegirine65.1.3c.2NaFe3+Si2O6
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Hedenbergite65.1.3a.2CaFe2+Si2O6
Group 69 - INOSILICATES Chains with Side Branches or Loops
Chains with Side Branches or Loops with (P=2, and N=4, 2 branches)
Astrophyllite69.1.1.1K2NaFe2+7Ti2Si8O28(OH)4F
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Annite71.2.2b.3KFe2+3(AlSi3O10)(OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
Amphibole Supergroup-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'-
Arfvedsonite-[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
'Barkevikite' ?-
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'var: Perthite'-
Ferro-actinolite-☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Ferro-edenite-{Na}{Ca2}{Fe2+5}(AlSi7O22)(OH)2
Ferro-richterite-{Na}{CaNa}{Fe2+5}(Si8O22)(OH)2
'Gabbro'-
Hastingsite-{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
'Iddingsite'-MgO · Fe2O3 · 3SiO2·4H2O
'Quartz-syenite'-
Riebeckite ?-◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
'Syenite'-

List of minerals for each chemical element

HHydrogen
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H AnniteKFe32+(AlSi3O10)(OH)2
H Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
H AstrophylliteK2NaFe72+Ti2Si8O28(OH)4F
H Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
H Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
H Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
H Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
H IddingsiteMgO · Fe2O3 · 3SiO2·4H2O
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
OOxygen
O AegirineNaFe3+Si2O6
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O AnniteKFe32+(AlSi3O10)(OH)2
O Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
O AstrophylliteK2NaFe72+Ti2Si8O28(OH)4F
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O FayaliteFe22+SiO4
O Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
O Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
O Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
O Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
O HedenbergiteCaFe2+Si2O6
O IddingsiteMgO · Fe2O3 · 3SiO2·4H2O
O IlmeniteFe2+TiO3
O MagnetiteFe2+Fe23+O4
O PhlogopiteKMg3(AlSi3O10)(OH)2
O Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
O ZirconZr(SiO4)
FFluorine
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
F AstrophylliteK2NaFe72+Ti2Si8O28(OH)4F
NaSodium
Na AegirineNaFe3+Si2O6
Na Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Na AstrophylliteK2NaFe72+Ti2Si8O28(OH)4F
Na Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Na Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Na Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Na Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Mg IddingsiteMgO · Fe2O3 · 3SiO2·4H2O
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
AlAluminium
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al AnniteKFe32+(AlSi3O10)(OH)2
Al Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Al Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Al PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Si AegirineNaFe3+Si2O6
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si AnniteKFe32+(AlSi3O10)(OH)2
Si Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Si AstrophylliteK2NaFe72+Ti2Si8O28(OH)4F
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si FayaliteFe22+SiO4
Si Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Si Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Si Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Si Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Si HedenbergiteCaFe2+Si2O6
Si IddingsiteMgO · Fe2O3 · 3SiO2·4H2O
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Si ZirconZr(SiO4)
SSulfur
S ChalcopyriteCuFeS2
S Pentlandite(FexNiy)Σ9S8
ClChlorine
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
K AnniteKFe32+(AlSi3O10)(OH)2
K AstrophylliteK2NaFe72+Ti2Si8O28(OH)4F
K PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Ca Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Ca Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Ca Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Ca HedenbergiteCaFe2+Si2O6
TiTitanium
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti AstrophylliteK2NaFe72+Ti2Si8O28(OH)4F
Ti IlmeniteFe2+TiO3
FeIron
Fe AegirineNaFe3+Si2O6
Fe AnniteKFe32+(AlSi3O10)(OH)2
Fe Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Fe AstrophylliteK2NaFe72+Ti2Si8O28(OH)4F
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe ChalcopyriteCuFeS2
Fe FayaliteFe22+SiO4
Fe Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Fe Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Fe Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Fe Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Fe HedenbergiteCaFe2+Si2O6
Fe IddingsiteMgO · Fe2O3 · 3SiO2·4H2O
Fe IlmeniteFe2+TiO3
Fe MagnetiteFe2+Fe23+O4
Fe Pentlandite(FexNiy)Σ9S8
Fe Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
NiNickel
Ni Pentlandite(FexNiy)Σ9S8
CuCopper
Cu ChalcopyriteCuFeS2
ZrZirconium
Zr ZirconZr(SiO4)

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Stephenson, D. & Upton, B.J.G. (1982) Ferromagnesian silicates in a differentiated alkaline complex: Kûngnât Fjeld, South Greenland. Mineralogical Magazine. 46: 283-300
Hodson, M.E., and Finch, A.A. (1997) Trough structures in the Western syenite of Kûngnât, S Greenland: mineralogy and mechanism of formation. Contributions to Mineralogy and Petrology 127: 46-56.

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