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Roberts Massif 03522
Basic information Name: Roberts Massif 03522
     This is an OFFICIAL meteorite name.
Abbreviation: RBT 03522
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 282 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 28(1)  (2005)  CK5
Meteoritical Bulletin:  MB 89  (2005)  CK5
MetBase:  v. 7.1  (2006)  CK5
Recommended:  CK5    [explanation]

This is 1 of 201 approved meteorites classified as CK5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Writeuphelp
Writeup from AMN 28(1):
Sample No.: RBT 03522
Location: Robert Massif
Field No.: 15348
Dimensions (cm):   6.0x5.5x4.0
Weight (g): 282.4
Meteorite Type: CK5 Chondrite
RBT03522 RBT03522
RBT03522  
   

Macroscopic Description: Kathleen McBride
Small patches of brown/black fusion crust are visible on the exterior. The exposed interior is dark gray, with a rough texture and patches of white evaporites. The interior is steel gray matrix with mm sized gray chondrules. This carbonaceous chondrite is hard.

Thin Section (,2) Description: Cari Corrigan, Tim McCoy

RBT 03522 - Cross-Polarized Light RBT 03522 - Plane-Polarized Light
Cross-Polarized Light Plane-Polarized Light
The section consists of relict chondrules up to 2 mm in a matrix of finer-grained silicates, sulfides and magnetite. Weathering is minor, but shock-blackening is extensive. Silicates are homogeneous. Olivine is Fa27-30 and orthopyroxene is Fs28. The meteorite is a CK5 chondrite.
Data from:
  MB89
  Table A1
  Line 820:
Mass (g):282.4
Class:CK5
Weathering grade:B
Fayalite (mol%):27-30
Ferrosilite (mol%):28
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 43840 approved meteorites from Antarctica (plus 3802 unapproved names)

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