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Widerøefjellet Mountain, Sør Rondane Mountains, Queen Maud Land, Eastern Antarctica, Antarcticai
Regional Level Types
Widerøefjellet MountainMountain
Sør Rondane MountainsMountain Range
Queen Maud LandRegion
Eastern AntarcticaRegion
AntarcticaContinent

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Latitude & Longitude (WGS84):
72° 8' 40'' South , 23° 16' 41'' East
Latitude & Longitude (decimal):
-72.14472,23.27806
GeoHash:
G#:he0t9dqwd
GRN:
S49E06
Type:
Mountain
Köppen climate type:
EF : Ice cap climate
Mindat Locality ID:
451751
Long-form identifier:
mindat:1:2:451751:4
GUID (UUID V4):
20520228-6c9e-48c3-9d57-0af362c44a1c


Micrometeorites (MMs), which are cosmic dust grains ranging from 10 microns to 2 mm in size, can reach the Earth’s surface through collisions with asteroids or by frag mentation of comets in space. When MMs enter the atmosphere, they are heated to vary ing degrees depending on their size, mass, speed, and angle of entry. As a result of friction during atmospheric entry, MMs undergo partial melting and subsequently recrystallize during undercooling.

39% of the extracted cosmic spherules are barred olivine (BO-type), 28% crypto-crystalline (C-type), 17% glassy (V-type), 10% porphyritic-olivine (POtype), 5% iron (I-Type), and finally 1% G-Type cosmic spherules.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Mineral List


8 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical ListTree Diagram

Detailed Mineral List:

ⓘChromite
Formula:Fe2+Cr3+2O4
ⓘEnstatite
Formula:Mg2Si2O6
ⓘFayalite
Formula:Fe2+2SiO4
ⓘForsterite
Formula:Mg2SiO4
ⓘIron
Formula:Fe
ⓘIron var. Kamacite
Formula:(Fe,Ni)
ⓘMagnetite
Formula:Fe2+Fe3+2O4
ⓘ'Maskelynite'
ⓘMuscovite
Formula:KAl2(AlSi3O10)(OH)2
ⓘMuscovite var. Illite
Formula:K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ'Olivine Group'
Formula:M2SiO4
ⓘ'Plagioclase'
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Pyroxene Group'
Formula:ADSi2O6
ⓘTroilite
Formula:FeS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘIron1.AE.05Fe
ⓘvar. Kamacite1.AE.05(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
ⓘTroilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
Group 9 - Silicates
ⓘFayalite9.AC.05Fe2+2SiO4
ⓘForsterite9.AC.05Mg2SiO4
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘMuscovite
var. Illite		9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Maskelynite'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Olivine Group'-M2SiO4

List of minerals for each chemical element

HHydrogen
HⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
HⓘMuscoviteKAl2(AlSi3O10)(OH)2
OOxygen
OⓘChromiteFe2+Cr23+O4
OⓘEnstatiteMg2Si2O6
OⓘFayaliteFe22+SiO4
OⓘForsteriteMg2SiO4
OⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
OⓘMagnetiteFe2+Fe23+O4
OⓘMuscoviteKAl2(AlSi3O10)(OH)2
OⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
OⓘPyroxene GroupADSi2O6
OⓘOlivine GroupM2SiO4
NaSodium
NaⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
MgⓘEnstatiteMg2Si2O6
MgⓘForsteriteMg2SiO4
AlAluminium
AlⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
AlⓘMuscoviteKAl2(AlSi3O10)(OH)2
AlⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
SiⓘEnstatiteMg2Si2O6
SiⓘFayaliteFe22+SiO4
SiⓘForsteriteMg2SiO4
SiⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
SiⓘMuscoviteKAl2(AlSi3O10)(OH)2
SiⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiⓘPyroxene GroupADSi2O6
SiⓘOlivine GroupM2SiO4
SSulfur
SⓘTroiliteFeS
KPotassium
KⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
KⓘMuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
CaⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
CrChromium
CrⓘChromiteFe2+Cr23+O4
FeIron
FeⓘChromiteFe2+Cr23+O4
FeⓘFayaliteFe22+SiO4
FeⓘIronFe
FeⓘIron var.Kamacite(Fe,Ni)
FeⓘMagnetiteFe2+Fe23+O4
FeⓘTroiliteFeS
NiNickel
NiⓘIron var.Kamacite(Fe,Ni)

Other Regions, Features and Areas containing this locality

Antarctic MeteoritesGroup of Meteorite Fall Locations
Antarctic PlateTectonic Plate
Antarctica

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, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

Soens, Bastien, Chernonozhkin, Stepan M., González de Vega, Claudia, Vanhaecke, Frank, van Ginneken, Matthias, Claeys, Philippe, Goderis, Steven (2022) Characterization of achondritic cosmic spherules from the Widerøefjellet micrometeorite collection (Sør Rondane Mountains, East Antarctica)Geochimica et Cosmochimica Acta, 325. 106-128doi:10.1016/j.gca.2022.03.029
[1]Sönmez, Taki, Aysal, Namık (2025) Crystal Morphology of Antarctic Micrometeorites Based on Melting–Cooling Processes During Atmospheric Entry.Crystals, 15 (2).doi:10.3390/cryst15020179
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