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Grove Mountains 050179
Basic information Name: Grove Mountains 050179
     This is an OFFICIAL meteorite name.
Abbreviation: GRV 050179
Observed fall: No
Year found: 2006
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass:help 5 g
Classification
  history:
Meteoritical Bulletin:  MB 93  (2008)  CM2
Recommended:  CM2    [explanation]

This is 1 of 533 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 4 Mar 2008
Revised 4 Aug 2008: final writeup
Writeuphelp
Writeup from MB 93:

Grove Mountains 050179                             72°57'32''S, 75°13'24''E

Grove Mountains, Antarctica

Find: 7 January 2006

Carbonaceous chondrite (CM2)

History and Physical characteristics: The meteorite was found on blue ice west to the middle segment of the Gale Escarpment in Grove Mountains by J. Li. It is a fragment but most surface covered by black fusion crust. Small light gray colored chondrules in dark matrix can be noticed. The meteorite weighs 5.03 g.

Petrography: (Y. Lin, S. Hu, and L. Feng, IGGCAS). Chondrules are small, with diameter of <300 μm, except for a few large (500-1000 μm in diameter). Almost all chondrules have accretionary rims, and chondrules/matrix ratio in volume is about 6. Aqueous alteration is highly developed in both chondrules and matrix, producing PCP-rich objects. Only a few large fragments of olivine remain. Minor Ca-carbonates occur as nodules.

Mineral compositions and Geochemistry: (S. Hu, T. Liu, and L. Feng, IGGCAS). Low Ca-pyroxene contains low FeO, (Fs0.8-8.9Wo0.8-4.1), olivine is highly heterogeneous within and among chondrules, with Fa1.0-31. Minor phases are kamacite, sulfides, chromite, and Ca carbonates.

Classification: Carbonaceous chondrite (CM2).

Type specimens: PRIC holds the main mass and a polished section.

Data from:
  MB93
  Table 6
  Line 434:
Date:7-Jan-2006
Latitude:72°57'32"S
Longitude:75°13'24"E
Mass (g):5.03
Pieces:1
Class:CM2
Classifier:IGGCAS
Main mass:PRIC
Institutions
   and collections
PRIC: Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200129, China; Website (institutional address; updated 9 Apr 2013)
IGGCAS: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011)
Catalogs:
Search for this meteorite in the Chinese meteorite database (CHINARE):   
References: Published in Meteoritical Bulletin, no. 93, MAPS 43, 571-632 (2008)
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Geography:

Antarctica
Coordinates:
     Recommended::   (72° 57' 32"S, 75° 13' 24"E)

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