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Elephant Moraine 87530
Basic information Name: Elephant Moraine 87530
     This is an OFFICIAL meteorite name.
Abbreviation: EET 87530
Observed fall: No
Year found: 1987
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 5 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 11(2)  (1988)  Diogenite
Meteoritical Bulletin:  MB 76  (1994)  Diogenite
NHM Catalogue:  5th Edition  (2000)  Diogenite
MetBase:  v. 7.1  (2006)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 422 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Writeuphelp
Writeup from AMN 11(2):

Sample No.: EET87530

Location: Elephant Moraine

Weight (g): 5.0

Field No.: 4572

Dimensions (cm): 1.5 x 1.5 x 1.5

Meteorite Type: Diogenite

 

Macroscopic Description: Roberta Score

Thin patches of fusion crust are scattered evenly over the exterior surfaces of this diogenite, covering about 50% of the specimen. Areas devoid of fusion crust are white, crystalline pyroxene with some green grains up to 1.5 mm in size. Oxidation is heavy in some areas.

 

Thin Section (,5) Description: Brian Mason

The section shows numerous pyroxene clasts, up to 6 mm across, in a groundmass of comminuted pyroxene; chromite is present in accessory amount. Minor weathering is indicated by small areas of brown limonitic staining. The pyroxene is very uniform in composition, Wo3Fs26. The meteorite is a diogenite.

Data from:
  MB76
  Table 2
  Line 1703:
Origin or pseudonym:Meteorite City
Mass (g):5
Class:Diog
Weathering grade:B
Ferrosilite (mol%):26
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 11(2) (1988), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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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 38937 approved meteorites from Antarctica (plus 5051 unapproved names)
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