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Asuk, Disko Island, Qeqertalik, Greenlandi
Regional Level Types
AsukOutcrop
Disko IslandIsland
QeqertalikMunicipality
GreenlandAutonomous Territory

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Latitude & Longitude (WGS84):
70° 10' 14'' North , 53° 14' 4'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Other Languages:
Greenlandic:
Asuk, Qeqertarsuaq, Qeqertalik Kommunia, Kalaallit Nunaat


At the northern coast of Qeqertarsuaq Island (Disko Island). Tertiary basalt with plagioclase-spinel-graphite bearing xenoliths occurs here. At this locality Steensrup, in 1872, first discovered and reported small lumps and grains of native iron in basalt. Earlier large boulders of native iron, thought to be meteoric in origin, has been found at Niakornak and Uvifaq.

Unique Ti oxides (likely related to Magnéli phases) were found in black, very fine-grained carbonaceous mudstone xenoliths among the reduced andesite breccia. The size of the xenoliths reaches 12 x l0 x 6 cm. They contain up to 2.3 vol% organic fragments (macerals), mainly vitrinite and inertinite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

Anorthite
Formula: Ca(Al2Si2O8)
Reference: Bøggild, O.B. (1953): The Mineralogy of Greenland. Meddelelser om Grønland, Bd. 149. Nr. 3. 445 pages. (p.277)
Anorthite var. Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Reference: Bøggild, O.B. (1953): The Mineralogy of Greenland. Meddelelser om Grønland, Bd. 149. Nr. 3. 445 pages. (p.277)
Armalcolite
Formula: (Mg,Fe2+)Ti2O5
Reference: Pedersen, A.K. (1979) A shale buchite xenolith with Al-armalcolite and native iron in a lava from Asuk, Disko, central West Greenland. Contributions to Mineralogy and Petrology, 69, No. 1, 83-94
Calcite
Formula: CaCO3
Reference: Bøggild, O.B. (1953): The Mineralogy of Greenland. Meddelelser om Grønland, Bd. 149. Nr. 3. 445 pages. (p.121-122)
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Pedersen, A.K. (1979) A shale buchite xenolith with Al-armalcolite and native iron in a lava from Asuk, Disko, central West Greenland. Contributions to Mineralogy and Petrology, 69, No. 1, 83-94
Corundum
Formula: Al2O3
Reference: Melson, William G. and George Switzer (1966): Plagioclase-spinel-graphite xenoliths in metallic iron-bearing basalts, Disko Island, Greenland. American Mineralogist. 51: 664-676
Enstatite
Formula: Mg2Si2O6
Description: phenocrysts in an andesitic rock
Reference: Bøggild, O.B. (1953): The Mineralogy of Greenland. Meddelelser om Grønland, Bd. 149. Nr. 3. 445 pages. (p.277),
'Glass'
Reference: Pedersen, A.K. (1979) A shale buchite xenolith with Al-armalcolite and native iron in a lava from Asuk, Disko, central West Greenland. Contributions to Mineralogy and Petrology, 69, No. 1, 83-94
Graphite
Formula: C
Reference: Am Min 51:664-676; Pedersen, A.K. (1979) A shale buchite xenolith with Al-armalcolite and native iron in a lava from Asuk, Disko, central West Greenland. Contributions to Mineralogy and Petrology, 69, No. 1, 83-94
Hisingerite
Formula: Fe3+2(Si2O5)(OH)4 · 2H2O
Reference: Bøggild, O.B. (1953): The Mineralogy of Greenland. Meddelelser om Grønland, Bd. 149. Nr. 3. 445 pages. (p.346))
Ilmenite
Formula: Fe2+TiO3
Reference: Pedersen, A.K. (1979) A shale buchite xenolith with Al-armalcolite and native iron in a lava from Asuk, Disko, central West Greenland. Contributions to Mineralogy and Petrology, 69, No. 1, 83-94
Iron
Formula: Fe
Reference: Am Min 51:664-676; Pedersen, A.K. (1979) A shale buchite xenolith with Al-armalcolite and native iron in a lava from Asuk, Disko, central West Greenland. Contributions to Mineralogy and Petrology, 69, No. 1, 83-94
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Reference: Am Min 51:664-676; Pedersen, A.K. (1979) A shale buchite xenolith with Al-armalcolite and native iron in a lava from Asuk, Disko, central West Greenland. Contributions to Mineralogy and Petrology, 69, No. 1, 83-94
Quartz
Formula: SiO2
Reference: Bøggild, O.B. (1953): The Mineralogy of Greenland. Meddelelser om Grønland, Bd. 149. Nr. 3. 445 pages. (p.121-122)
Quartz var. Chalcedony
Formula: SiO2
Reference: Bøggild, O.B. (1953): The Mineralogy of Greenland. Meddelelser om Grønland, Bd. 149. Nr. 3. 445 pages. (p.121-122)
Rutile
Formula: TiO2
Reference: Pedersen, A.K. (1979) A shale buchite xenolith with Al-armalcolite and native iron in a lava from Asuk, Disko, central West Greenland. Contributions to Mineralogy and Petrology, 69, No. 1, 83-94
Spinel
Formula: MgAl2O4
Reference: Melson, William G. and George Switzer (1966): Plagioclase-spinel-graphite xenoliths in metallic iron-bearing basalts, Disko Island, Greenland. American Mineralogist. 51: 664-676
Troilite
Formula: FeS
Reference: Pedersen, A.K. (1979) A shale buchite xenolith with Al-armalcolite and native iron in a lava from Asuk, Disko, central West Greenland. Contributions to Mineralogy and Petrology, 69, No. 1, 83-94
'UM1987-04-O:Ti'
Formula: TiO1.71-1.83
Reference: Pedersen, A.K., Rønsbo, J.G. (1987): Oxygen deficient Tioxides (natural Magnéli phases) from mudstone xenoliths with native iron from Disko, central West Greenland. Contrib. Mineral. Petrol.: 96: 35-46; in: Jambor, J.L., Burke, E.A.J. (1990): New mineral Names. American Mineralogist: 75: 1434

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Iron1.AE.05Fe
Group 2 - Sulphides and Sulfosalts
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Armalcolite4.CB.15(Mg,Fe2+)Ti2O5
Corundum4.CB.05Al2O3
Ilmenite4.CB.05Fe2+TiO3
Quartz4.DA.05SiO2
var. Chalcedony4.DA.05SiO2
Rutile4.DB.05TiO2
Spinel4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Anorthite9.FA.35Ca(Al2Si2O8)
var. Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Enstatite9.DA.05Mg2Si2O6
Hisingerite9.ED.10Fe3+2(Si2O5)(OH)4 · 2H2O
Unclassified Minerals, Rocks, etc.
'Glass'-
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
'UM1987-04-O:Ti'-TiO1.71-1.83

List of minerals for each chemical element

HHydrogen
H HisingeriteFe23+(Si2O5)(OH)4 · 2H2O
CCarbon
C GraphiteC
C CalciteCaCO3
OOxygen
O SpinelMgAl2O4
O CorundumAl2O3
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
O RutileTiO2
O Armalcolite(Mg,Fe2+)Ti2O5
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O IlmeniteFe2+TiO3
O Quartz var. ChalcedonySiO2
O QuartzSiO2
O CalciteCaCO3
O EnstatiteMg2Si2O6
O Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
O HisingeriteFe23+(Si2O5)(OH)4 · 2H2O
O AnorthiteCa(Al2Si2O8)
O UM1987-04-O:TiTiO1.71-1.83
NaSodium
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Na Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
MgMagnesium
Mg SpinelMgAl2O4
Mg Armalcolite(Mg,Fe2+)Ti2O5
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg EnstatiteMg2Si2O6
AlAluminium
Al SpinelMgAl2O4
Al CorundumAl2O3
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Al AnorthiteCa(Al2Si2O8)
SiSilicon
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si Quartz var. ChalcedonySiO2
Si QuartzSiO2
Si EnstatiteMg2Si2O6
Si Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Si HisingeriteFe23+(Si2O5)(OH)4 · 2H2O
Si AnorthiteCa(Al2Si2O8)
SSulfur
S TroiliteFeS
CaCalcium
Ca Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Ca CalciteCaCO3
Ca Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Ca AnorthiteCa(Al2Si2O8)
TiTitanium
Ti RutileTiO2
Ti Armalcolite(Mg,Fe2+)Ti2O5
Ti IlmeniteFe2+TiO3
Ti UM1987-04-O:TiTiO1.71-1.83
FeIron
Fe IronFe
Fe Armalcolite(Mg,Fe2+)Ti2O5
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe IlmeniteFe2+TiO3
Fe TroiliteFeS
Fe HisingeriteFe23+(Si2O5)(OH)4 · 2H2O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Melson, William G. and George Switzer (1966): Plagioclase-spinel-graphite xenoliths in metallic iron-bearing basalts, Disko Island, Greenland. American Mineralogist. 51: 664-676
Pauly, H. (1969): White cast iron with cohenite, schreibersite, and sulphides from tertiary basalts on Disko, Greenland. Meddelelser fra Dansk Geologisk Forening, 19 (1), 28-26
Pedersen, A.K., Rønsbo, J.G. (1987): Oxygen deficient Tioxides (natural Magnéli phases) from mudstone xenoliths with native iron from Disko, central West Greenland. Contrib. Mineral. Petrol.: 96: 35-46; in: Jambor, J.L., Burke, E.A.J. (1990): New mineral Names. American Mineralogist: 75: 1434
Pedersen, A.K. (1979): A shale buchite xenolith with Al-armalcolite and native iron in a lava from Asuk, Disko, central West Greenland. Contributions to Mineralogy and Petrology. 69 (1), 83-94

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