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MacAlpine Hills 041193
Basic information Name: MacAlpine Hills 041193
     This is an OFFICIAL meteorite name.
Abbreviation: MAC 041193
Observed fall: No
Year found: 2004
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1.3 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 29(2)  (2006)  Acapulcoite/Lodranite
Meteoritical Bulletin:  MB 92  (2007)  Acapulcoite/Lodranite
Recommended:  Acapulcoite/lodranite    [explanation]

This is 1 of 11 approved meteorites classified as Acapulcoite/lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Primitive achondrites
Comments: Field number: 15807
Approved 1 Sep 2006
Writeuphelp
Writeup from AMN 29(2):
Sample No.: MAC 041193
Location: MacAlpine Hills
Field No.: 15807
Dimensions (cm):   1.0x1.5x0.5
Weight (g): 1.318
Meteorite Type: Acapulcoite-Lodranite

Thin Section (,2) Description: Tim McCoy
The section exhibits a granoblastic texture with abundant triple junctions and grain sizes of 100-300 microns. Olivine, pyroxene, plagioclase and coarse metal are uniformly distributed, but sulfide is markedly depleted relative to chondrites. Olivine is Fa11, pyroxene is Fs11Wo2 and plagioclase is An15Or5. The meteorite is a member of the acapulcoite-lodranite clan. It is not paired with MAC 88177, but is similar in some respects to the transitional members EET 84302 and GRA 95209.



Thin Section Images

Cross-Polarized LightPlane-Polarized LightCross-Polarized Light
MAC 041193 - Cross-Polarized Light MAC 041193 - Plane-Polarized Light MAC 041193 - Cross-Polarized Light
Reflected LightCross-Polarized LightPlane-Polarized Light
MAC 041193 - Reflected Light MAC 041193 - Cross-Polarized Light MAC 041193 - Plane-Polarized Light


Data from:
  MB92
  Table 3
  Line 610:
Mass (g):1.3
Class:Acp/Lod
Weathering grade:B
Fayalite (mol%):11
Ferrosilite (mol%):11
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 29(2) (2006), JSC, Houston
Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)
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Photos:
CreditPhotos
Photographs from AMN:
JSC A photo is in the write-up above
Geography:

Antarctica
Coordinates:
     Recommended::   (84° 18' 53"S, 159° 52' 48"E)

Statistics:
     This is 1 of 44248 approved meteorites from Antarctica (plus 3802 unapproved names)
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