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Elephant Moraine 96331
Basic information Name: Elephant Moraine 96331
     This is an OFFICIAL meteorite name.
Abbreviation: EET 96331
Observed fall: No
Year found: 1996
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 121.9 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 21(2)  (1998)  Ureilite
Meteoritical Bulletin:  MB 83  (1999)  Ureilite
NHM Catalogue:  5th Edition  (2000)  Ureilite
MetBase:  v. 7.1  (2006)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 658 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Writeuphelp
Writeup from AMN 21(2):

Sample No

.:

EET96314; EET96331

Location:

Elephant Moraine

Dimensions (cm):

5.0x3.5x2.5; 5.0x4.5x2.5

Weight (g):

80.34; 121.93

Meteorite Type:

Ureilites


EET96314 Thumbnail EET96331 Thumbnail

Macroscopic Description: Kathleen McBride
This achondrite has a dull black fusion crusted exterior with a few shiny glassy patches. There is moderate weathering on the exterior surface. The interior is steel gray in color with a crystalline texture. Some crystals are dark in color.

Thin Section (EET96314,2; 96331,4) Description: Tim McCoy

EET96314 - Cross-Polarized Light EET96331 - Cross-Polarized Light
EET96314 EET96331

The sections consist of an aggregate of large olivine grains up to 1 mm across with numerous areas of finer-grained (~200m m), equigranular olivine, pigeonite and augite with abundant 120° triple junctions. Individual grains are rimmed by carbon-rich material containing traces of metal. Shock effects are numerous, including undulatory extinction, polysynthetic twinning and kink banding. Olivines have cores of Fa12-13, with rims reduced to Fa2. Pigeonite (Fs11Wo4) and augite (Fs7Wo29) are relatively homogeneous. These meteorites are paired ureilites and may be paired with EET96293.

Data from:
  MB83
  Table A1
  Line 258:
Origin or pseudonym:Meteorite City
Mass (g):121.9
Class:Ur
Weathering grade:B
Fayalite (mol%):13
Ferrosilite (mol%):11
Comments:96293 pairing group
Catalogs:
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Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 21(2) (1998), JSC, Houston
Published in Meteoritical Bulletin, no. 83, MAPS 34, A169-A186 (1999)
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Photos:
CreditPhotos
Photographs from AMN:
Photograph from unknown source A photo is in the write-up above
Photos from the Encyclopedia of Meteorites:
Dr Carlton Allen, JSC-KT, NASA      
Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (76° 11'S, 157° 10'E)
     Recommended::   (76° 11'S, 157° 10'E)

Statistics:
     This is 1 of 44400 approved meteorites from Antarctica (plus 3802 unapproved names)
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