MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 29 May 2023
Search for: Search type: Search limits: Display: Publication:
Text help
Starts with
Sounds like
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Elephant Moraine 90021
Basic information Name: Elephant Moraine 90021
     This is an OFFICIAL meteorite name.
Abbreviation: EET 90021
Observed fall: No
Year found: 1990
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 19.6 g
Antarctic Meteorite Newsletter:  AMN 15(1)  (1992)  C2
Meteoritical Bulletin:  MB 76  (1994)  C2
NHM Catalogue:  5th Edition  (2000)  C2
MetBase:  v. 7.1  (2006)  CM2
Antarctic Meteorite Newsletter:  AMN 31(1)  (2008)  CM2
Recommended:  CM2    [explanation]

This is 1 of 622 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Writeup from AMN 15(1):

Sample No.: EET90021

Location: Elephant Moraine

Field Number: 6351

Dimensions (cm): 3.2 x 3 x 1

Weight (g): 19.6

Meteorite Type: C2 chondrite


Macroscopic Description: Cecilia Satterwhite

Seventy percent of the exterior of this carbonaceous chondrite is covered with fractured, black fusion crust. Cleaving this stone revealed an interior that is black in color and contains abundant light gray inclusions that are as large as 2 mm in diameter. A weathering rind is present.


Thin Section (,2) Description: Brian Mason

The section consists largely of black opaque matrix, with occasional chondrules up to 0.3 mm across and numerous small grains of olivine and a little pyroxene. Microprobe analyses show that most of the olivine is close to Mg2SiO4 in composition, with a few more iron-rich grains; mean composition is Fa3, with range Fa1-28 (CV FeO is 241). Pyroxene composition is Fs1-3. The meteorite is a C2 chondrite.


Data from:
  Table 2
  Line 2054:
Origin or pseudonym:Texas Bowl
Mass (g):19.6
Weathering grade:A/B
Fayalite (mol%):1-28
Ferrosilite (mol%):1-3
Search for specimens in the Smithsonian Institution collection (U.S.):   
    Require SI photo
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 15(1) (1992), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
Find references in NASA ADS:
Find references in Google Scholar:

     Catalogue of Meteorites:   (76° 11'S, 157° 10'E)
     Recommended::   (76° 16' 5"S, 156° 27' 22"E)
Note: the NHM and MetBase coordinates are 21.1 km apart

     This is 1 of 43856 approved meteorites from Antarctica (plus 3802 unapproved names)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page