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Armel meteorite, Yuma County, Colorado, USAi
Regional Level Types
Armel meteoriteMeteorite Fall Location
Yuma CountyCounty
ColoradoState
USACountry

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Latitude & Longitude (WGS84):
39° 46' 0'' North , 102° 7' 59'' West
Latitude & Longitude (decimal):
39.76667,-102.13333
GeoHash:
G#: 9xp65zkc8
GRN:
N27W57
Type:
Meteorite Fall Location
Meteorite Class:
L5 chondrite meteorite
Meteoritical Society Class:
L5
Metbull:
View entry in Meteoritical Bulletin Database
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Saint Francis1,329 (2017)28.5km
Haigler147 (2017)32.1km
Wray2,378 (2017)35.2km
Kanorado154 (2017)48.9km
Eckley251 (2017)49.2km
Mindat Locality ID:
296114
Long-form identifier:
mindat:1:2:296114:2
GUID (UUID V4):
0


Ordinary chondrite (L5; S5)
Find, 1967; 9.2 kg

A meteoritic stone was plowed up. Inspections reveal chondrules and chondrule fragments within a largely equilibrated but very fractured matrix. Compositionally, equilibrated olivine (Fa23) and low Ca-orthopyroxene ('hypersthene') are characteristic of the L-chondrite chemical group. Mineralogically, the meteorite consists primarily of olivine accompanied by orthopyroxene along with minor troilite and Fe-Ni metal. Accessory chromite, ilmenite, isocubanite, and mackinawite are also reported.

A relatively short U-He age of ~290 Ma suggests a major collision of an intermediate parent body (IMP) during the past eon.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Meteorite/Rock Types Recorded

Note: 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:

ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ 'Fayalite-Forsterite Series'
Description: Olivine composition (Fa23) is characteristic of the L chondrite chemical group.
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Isocubanite
Formula: CuFe2S3
Description: Ramdohr (1973), presumably based upon textural characteristics, invariably listed only those phases he considered pre-terrestrial. Isotopic confirmation would clearly be desirable as isocubanite is found in both preterrestrial and post-terrestrial venues in chondritic meteorites.
ⓘ Mackinawite
Formula: FeS
ⓘ Native Iron
Formula: Fe
ⓘ Native Iron var. Kamacite
Formula: (Fe,Ni)
ⓘ 'Orthopyroxene Subgroup'
ⓘ 'Plessite'
ⓘ Taenite
Formula: (Fe,Ni)
ⓘ Troilite
Formula: FeS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Iron1.AE.05Fe
ⓘvar. Kamacite1.AE.05(Fe,Ni)
ⓘTaenite1.AE.10(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
ⓘIsocubanite2.CB.55bCuFe2S3
ⓘTroilite2.CC.10FeS
ⓘMackinawite2.CC.25FeS
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
Unclassified
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Plessite'-
ⓘ'Orthopyroxene Subgroup'-

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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

References

www.lpi.usra.edu (n.d.) http://www.lpi.usra.edu/meteor/metbull.php?code=2336
Krinov, E.L. - Ed. (1957) Meteoritical Bulletin, No. 5. Moscow.
Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025
Graham, A. L., Bevan, A. W. R., Hutchison, R. (1985) Catalogue of Meteorites - With Special Reference to those Represented in the Collection of the British Museum (Natural History) (4th ed.) British Museum (Natural History), London.
Wasson, John T., Wang, Sichao (1991) The histories of ordinary chondrite parent bodies: U,Th-He age distributions. Meteoritics, 26 (2) 161-167 doi:10.1111/j.1945-5100.1991.tb01033.x
Grady, Monica (2000) Catalogue of Meteorites (5th ed.). Cambridge University Press.
www.lpi.usra.edu (n.d.) http://www.lpi.usra.edu/meteor/metbull.php
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