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MacKay Glacier 92502
Basic information Name: MacKay Glacier 92502
     This is an OFFICIAL meteorite name.
Abbreviation: MCY 92502
Observed fall: No
Year found: 1992
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 0.7 g
Antarctic Meteorite Newsletter:  AMN 17(1)  (1994)  C2
Meteoritical Bulletin:  MB 79  (1996)  C2
NHM Catalogue:  5th Edition  (2000)  C2
MetBase:  v. 7.1  (2006)  C2
Antarctic Meteorite Newsletter:  AMN 33(1)  (2010)  CM2
Recommended:  CM2    [explanation]

This is 1 of 606 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 17(1):

Sample No.: MCY92502

Location: MacKay Glacier

Dimensions (cm): 1.1 x 0.8 x 0.4

Weight (g): 0.7

Meteorite Type: C2 chondrite


Macroscopic Description: Carol Schwarz

Forty percent of this small fragment is covered with frothy fusion crust. The interior matrix is black and contains some small whitish inclusions. Evaporite deposit is abundant.


Thin Section (,2) Description: Brian Mason

The section shows sparse chondrules up to 0.9 mm across, irregular aggregates, and small mineral grains in a black matrix. The minerals are mainly olivine, with minor pyroxene. Olivine compositions are mostly near Mg2SiO4, but occasional iron-rich grains were analyzed, up to En35. Pyroxene compositions range from Fs2 to Fs4. The matrix appears to be largely iron-rich serpentine. The meteorite is a C2 chondrite, and is probably paired with MCY92500.


Data from:
  Table 2
  Line 495:
Mass (g):0.7
Weathering grade:Be
Fayalite (mol%):1-35
Ferrosilite (mol%):2-4
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References: Published in Antarctic Meteorite Newsletter 17(1) (1994), JSC, Houston
Published in Meteoritical Bulletin, no. 79, MAPS 31, A161-A174 (1996)
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     Catalogue of Meteorites:   (76° 58'S, 162° 0'E)
     Recommended::   (76° 58'S, 162° 0'E)

     This is 1 of 43331 approved meteorites from Antarctica (plus 3802 unapproved names)
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