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Roberts Massif 03523
Basic information Name: Roberts Massif 03523
     This is an OFFICIAL meteorite name.
Abbreviation: RBT 03523
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 6.7 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 28(1)  (2005)  CM2
Meteoritical Bulletin:  MB 89  (2005)  CM2
MetBase:  v. 7.1  (2006)  CM2
Recommended:  CM2    [explanation]

This is 1 of 541 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 28(1):
Sample No.: RBT 03523
Location: Robert Massif
Field No.: 15331
Dimensions (cm):   2.0x1.5x1.5
Weight (g): 6.702
Meteorite Type: CM2 Chondrite
    RBT03523 RBT03523

Macroscopic Description: Kathleen McBride
The exterior has a dull, black fusion crust with polygonal fractures. The black interior matrix contains small light colored chondrules. This carbonaceous chondrite is soft.

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

RBT 03523 - Cross-Polarized Light RBT 03523 - Plane-Polarized Light
Cross-Polarized Light Plane-Polarized Light
The section consists of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa1-57. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite
Data from:
  MB89
  Table A1
  Line 821:
Mass (g):6.7
Class:CM2
Weathering grade:B
Fayalite (mol%):1-57
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:Unknown.

Statistics:
     This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)

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