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MacAlpine Hills 02917
Basic information Name: MacAlpine Hills 02917
     This is an OFFICIAL meteorite name.
Abbreviation: MAC 02917
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 222 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 28(1)  (2005)  L3
Meteoritical Bulletin:  MB 89  (2005)  L3
MetBase:  v. 7.1  (2006)  L3
Recommended:  L3    [explanation]

This is 1 of 680 approved meteorites classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Field number: 14765
Writeuphelp
Writeup from AMN 28(1):
Sample No.: MAC 02917
Location: MacAlpine Hills
Field No.: 14765
Dimensions (cm):   7.4x5.0x4.1
Weight (g): 222.161
Meteorite Type: L3 Chondrite
    MAC02917

Macroscopic Description: Cecilia Satterwhite
Black fusion crust covers 90% of the exterior. The surface is pitted and has oxidation haloes. The interior is dark gray to black with areas of heavy oxidation. Some metal is visible and inclusions are abundant. Inclusions range in size from 1-5 mm and are white and cream in color.

Thin Section (,2) Description: Linda Welzenbach, Tim McCoy

MAC 02917 - Cross-Polarized Light MAC 02917 - Plane-Polarized Light
Cross-Polarized Light Plane-Polarized Light
The section exhibits numerous small, well-defined chondrules (up to 2 mm) in a black matrix of fine-grained silicates, metal and troilite. Weak shock effects are present. Polysynthetically twinned pyroxene is extremely abundant. The meteorite is moderately weathered. Silicates are unequilibrated; olivines range from Fa9-27 and pyroxenes from Fs2-24. The meteorites are L3 chondrites (estimated subtype 3.7).
Data from:
  MB89
  Table A1
  Line 630:
Origin or pseudonym:Bottom Lip
Mass (g):222.16
Class:L3
Weathering grade:B
Fayalite (mol%):9-27
Ferrosilite (mol%):2-24
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 28(1) (2005), JSC, Houston
Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Photos:
CreditPhotos
Photographs from AMN:
Photograph from unknown source A photo is in the write-up above
Geography:

Antarctica
Coordinates:
     Recommended::   (84° 19' 18"S, 159° 30' 50"E)

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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