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Elephant Moraine 90029
Basic information Name: Elephant Moraine 90029
     This is an OFFICIAL meteorite name.
Abbreviation: EET 90029
Observed fall: No
Year found: 1990
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 7.9 g
Antarctic Meteorite Newsletter:  AMN 14(2)  (1991)  Eucrite
AMN 17(1)  (1994)  Eucrite-unbr
Meteoritical Bulletin:  MB 76  (1994)  Eucrite-unbr
NHM Catalogue:  5th Edition  (2000)  Eucrite-unbr
MetBase:  v. 7.1  (2006)  Eucrite
Recommended:  Eucrite-unbr    [explanation]

This is 1 of 127 approved meteorites classified as Eucrite-unbr.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeup from AMN 14(2):

Sample No.: EET90029

Location: Elephant Moraine

Field Number: 7298

Dimensions (cm): 2 x 2 x 1.5

Weight (g): 7.9

Meteorite Type: Eucrite


Macroscopic Description: Cecilia Satterwhite

Sixty percent of this meteorite is covered with black fusion crust. Areas devoid of fusion crust are medium to dark gray and contain some oxidation. The interior is light gray with small black grains (1 mm). Black glassy veins were noted.


Thin Section (,3) Description: Brian Mason

The section consists largely of pyroxene, with some plagioclase and a little opaque material. The pyroxene is very fine-grained (average grain size 0.01 - 0.02 mm); the plagioclase is present as laths up to 0.2 mm long. Pyroxene compositions range from Wo4Fs57 to Wo12Fs50, with one grain Wo40Fs27; plagioclase composition is An88-93.

The meteorite is a eucrite.


Data from:
  Table 2
  Line 2062:
Origin or pseudonym:Texas Bowl
Mass (g):7.9
Class:Eu "ub"
Weathering grade:A/B
Ferrosilite (mol%):27-57
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References: Published in Antarctic Meteorite Newsletter 14(2) (1991), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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     Catalogue of Meteorites:   (76° 11'S, 157° 10'E)
     Recommended::   (76° 16' 26"S, 156° 22' 28"E)
Note: the NHM and MetBase coordinates are 23.4 km apart

     This is 1 of 43700 approved meteorites from Antarctica (plus 3802 unapproved names)
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