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Cumulus Hills 04021
Basic information Name: Cumulus Hills 04021
     This is an OFFICIAL meteorite name.
Abbreviation: CMS 04021
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 61.3 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 28(2)  (2005)  Mesosiderite
Meteoritical Bulletin:  MB 91  (2007)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 185 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 1 Sep 2005
Writeuphelp
Writeup from AMN 28(2):
Sample No.: CMS 04021
Location: Cumulus Hills
Field No.: 14615
Dimensions (cm):   5.0x3.5x2.5
Weight (g): 61.333
Meteorite Type: Mesosiderite
CMS 04021 CMS 04021
CMS 04021  
   

Macroscopic Description: Kathleen McBride
80% of the exterior is covered by thin, shiny chocolate brown fusion crust. The light gray crystalline matrix has 1-5 mm black angular inclusions, and 1-2 mm yellow and brown inclusions.

Thin Section (,4) Description: Tim McCoy

CMS 04021 - Cross-Polarized Light CMS 04021 - Reflected Light
Cross-Polarized Light Reflected Light
The section shows a groundmass of comminuted pyroxene, plagioclase, metal and sulfide with larger silicate fragments reaching 2 mm. Orthopyroxene compositions range from Fs28-32Wo2-3 (Fe/Mn ~30) and plagioclase is An77-94Or0-2. The meteorite is probably a silicate clast from a mesosiderite.
Data from:
  MB91
  Table 4
  Line 18:
Mass (g):61.3
Class:Meso
Weathering grade:A/B
Ferrosilite (mol%):28-32
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 28(2) (2005), JSC, Houston
Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)
Find references in NASA ADS:
Find references in Google Scholar:
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:Unknown.

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

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