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Meteorite Hills 01149
Basic information Name: Meteorite Hills 01149
     This is an OFFICIAL meteorite name.
Abbreviation: MET 01149
Observed fall: No
Year found: 2001
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 10.3 g
Antarctic Meteorite Newsletter:  AMN 26(2)  (2003)  CK3
Meteoritical Bulletin:  MB 88  (2004)  CK3
MetBase:  v. 7.1  (2006)  CK3
Antarctic Meteorite Newsletter:  AMN 33(1)  (2010)  R3
Recommended:  R3    [explanation]

This is 1 of 63 approved meteorites classified as R3.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Revised 12 Feb 2010: reclassified in AMN 33(1)
Writeup from AMN 26(2):
Sample No.: MET 01149
Location: Meteorite Hills
Field No.: 13028
Dimensions (cm):   3.5x1.5x1.25
Weight (g): 10.251
Meteorite Type: CK3 Chondrite

Macroscopic Description: Kathleen McBride
30% of the exterior has dull black fusion crust with polygonal fractures. The interior is medium gray matrix with very little weathering. Some gray and white clasts and chondrules are visible.

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

MET 01149 - Plane-Polarized Light MET 01149 - Cross-Polarized Light
Plane-Polarized Light Cross-Polarized Light
The section consists of well-defined chondrules (up to 1 mm) in a matrix of finer grained silicates, sulfides, magnetite and abundant sulfide. The meteorite is a little weathered, but extensively shocked. Silicates are heterogeneous, with olivine Fa2-39, with many grains around Fa39. The meteorite is probably a CK3 chondrite.

Writeup from AMN 33(1):
MET 01149 original classification in AMN 26, no. 2 (and Met Bull. 88) as a CK3 chondrite, but several unpublished studies have yielded information inconsistent with this classification. Because of the small nature of the sample, and the relatively rare class of CK3, the curator has decided to change this classification even with unpublished data to avoid confusion from requestors. MET 01149 is re-classified as an R3 because it contains many grains of Fa39 olivine, R-chondrite-size chondrules, and several cryptocrystalline chondrules (which are very rare in CK chondrites). INAA data generated at UCLA indicates that the rock has low abundances of refractory lithophile elements and relatively high Fe, consistent with an R-chondrite classification. (A. E. Rubin, 2009, pers. comm.).
Data from:
  Table A1
  Line 381:
Mass (g):10.251
Weathering grade:A
Fayalite (mol%):2-39
Ferrosilite (mol%): -
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 26(2) (2003), JSC, Houston
Published in Antarctic Meteorite Newsletter 33(1) (2010), JSC, Houston
Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
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Photographs from AMN:
Photograph from unknown source A photo is in the write-up above

     Recommended::   (79° 41'S, 159° 45'E)

     This is 1 of 43699 approved meteorites from Antarctica (plus 3802 unapproved names)
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