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Elephant Moraine 96123
Basic information Name: Elephant Moraine 96123
     This is an OFFICIAL meteorite name.
Abbreviation: EET 96123
Observed fall: No
Year found: 1996
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 8.5 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 21(2)  (1998)  H4
Meteoritical Bulletin:  MB 83  (1999)  H4
NHM Catalogue:  5th Edition  (2000)  H4
MetBase:  v. 7.1  (2006)  H4-an
Antarctic Meteorite Newsletter:  AMN 33(1)  (2010)  H4-anom
Recommended:  H4-an    [explanation]

This is 1 of 14 approved meteorites classified as H4-an.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeuphelp
Writeup from AMN 21(2):

Sample No.:

EET96123

Location:

Elephant Moraine

Dimensions (cm):

2.5x2.0x1.0

Weight (g):

8.45

Meteorite Type:

H4 Chondrite


Macroscopic Description: Kathleen McBride
50% of the exterior of this ordinary chondrite has black, bubbly fusion crust with numerous vesicles and dull luster with iridescent oxidation halos. The matrix is very rusty and friable, with numerous yellowish and gray chondrules present. Abundant metal grains are visible.

Thin Section (,2) Description: Tim McCoy

The section is a close-packed aggregate of chondrules (usually less than 1 mm across), chondrule fragments and mineral grains in a dark matrix with abundant metal and troilite. The meteorite is moderately weathered and shocked. Polysynthetically twinned pyroxene is common. Olivine (Fa16) and low Ca pyroxene compositions (Fs14) are below the range typical for H chondrites and similar to a small group of chondrites such as Willaroy (1993, GCA 57, 1867). The meteorite is an unusual H4 chondrite and is almost certainly paired with the EET 96031 pairing group.

Data from:
  MB83
  Table A1
  Line 52:
Origin or pseudonym:Meteorite City
Mass (g):8.5
Class:H4
Weathering grade:C
Fayalite (mol%):16
Ferrosilite (mol%):14
Comments:96031 pairing group
Catalogs:
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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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Geography:

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

Statistics:
     This is 1 of 40719 approved meteorites from Antarctica (plus 4494 unapproved names)
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