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LaPaz Icefield 02333
Basic information Name: LaPaz Icefield 02333
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 02333
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 131.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 26(2)  (2003)  CM2
Meteoritical Bulletin:  MB 88  (2004)  CM2
MetBase:  v. 7.1  (2006)  CM2
Recommended:  CM2    [explanation]

This is 1 of 505 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Writeuphelp
Writeup from AMN 26(2):
Sample No.: LAP 02239; LAP 02333
Location: LaPaz Ice field
Field No.: 15176; 15531
Dimensions (cm):   4.25x3.5x3.0
7.5x4.5x3.0
Weight (g): 39.272; 131.430
Meteorite Type: CM2 Chondrite
    LAP02239 LAP02333

Macroscopic Description: Kathleen McBride
65% of the exterior of 239 has rough pitted black fusion crust with polygonal fractures and a purple cast. The interior is a black matrix with < mm sized tan and gray chondrules. 95% of 333's exterior is covered with thick chocolate brown fusion crust with a purplish tinge and polygonal fractures. The interior is a black matrix with mm sized white chondrules and inclusions. Two 4-5 mm gray clasts are visible.

Thin Section Description: (,4; ,5) Tim McCoy, Linda Welzenbach
The meteorites are so similar that a single description suffices. The sections consist of abundant small chondrules (most less than 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa0-55, with a majority Fa0-2, orthopyroxene is Fs1-9. The matrix consists dominantly of an Fe-rich serpentine. The meteorites are CM2 chondrites.


Skip TS Images lap02239 333
LAP 02239 - Plane-Polarized Light LAP 02239 - Cross-Polarized Light LAP 02333 - Plane-Polarized Light LAP 02333 - Cross-Polarized Light
LAP 02239
Plane-Polarized Light
LAP 02239
Cross-Polarized Light
LAP 02333
Plane-Polarized Light
LAP 02333
Cross-Polarized Light
Data from:
  MB88
  Table A1
  Line 35:
Mass (g):131.43
Class:CM2
Weathering grade:B
Fayalite (mol%):0-55
Ferrosilite (mol%):1
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 26(2) (2003), JSC, Houston
Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
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Photos:
CreditPhotos
Photographs from AMN:
Photograph from unknown source A photo is in the write-up above
Photos from the Encyclopedia of Meteorites:
Dr Carlton Allen, JSC-KT, NASA      
Geography:

Antarctica
Coordinates:
     Recommended::   (86° 22'S, 70° 0'W)

Statistics:
     This is 1 of 38940 approved meteorites from Antarctica (plus 5051 unapproved names)
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