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MacAlpine Hills 02509
Basic information Name: MacAlpine Hills 02509
     This is an OFFICIAL meteorite name.
Abbreviation: MAC 02509
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 62.4 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: 14072
Writeuphelp
Writeup from AMN 28(1):
Sample No.: MAC 02467; MAC 02501; MAC 02509
Location: MacAlpine Hills
Field No.: 14020; 14044; 14072
Dimensions (cm):   3.0x2.5x2.0
3.3x2.7x1.6
4.0x3.2x3.2
Weight (g): 18.867; 32.375; 62.414
Meteorite Type: L3 Chondrite
    MAC02467 MAC02501 and MAC02509

Macroscopic Description: Kathleen McBride, Cecilia Satterwhite
The exterior has brown/black fusion crust with oxidation haloes visible. The interior is dark gray to black with some rusty areas. Gray, white, and rusty millimeter sized inclusions are visible.

Thin Section (,2) Description: Cari Corrigan, Tim McCoy
These meteorites are so similar that a single description suffices. The sections exhibit numerous large (up to 4 mm), well-defined chondrules in a black matrix of fine-grained silicates, metal and troilite. Weak shock effects are present. Polysynthetically twinned pyroxene is present. Weathering ranges from minor to moderate. Silicates are unequilibrated; olivines range from Fa0-25 and pyroxenes from Fs1-20. The meteorites are L3 chondrites (estimated subtype 3.4).


MAC 02467 - Cross-Polarized Light MAC 02501 - Cross-Polarized Light MAC 02509 - Cross-Polarized Light
MAC 02467
Cross-Polarized Light
MAC 02501
Cross-Polarized Light
MAC 02509
Cross-Polarized Light
MAC 02467 - Plane-Polarized Light MAC 02501 - Plane-Polarized Light MAC 02509 - Plane-Polarized Light
MAC 02467
Plane-Polarized Light
MAC 02501
Plane-Polarized Light
MAC 02509
Plane-Polarized Light
Data from:
  MB89
  Table A1
  Line 305:
Origin or pseudonym:snowshow ice
Mass (g):62.41
Class:L3
Weathering grade:B
Fayalite (mol%):0-25
Ferrosilite (mol%):1-20
Comments:02467 pairing group
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° 14' 41"S, 160° 16' 34"E)

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