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Grove Mountains 050384
Basic information Name: Grove Mountains 050384
     This is an OFFICIAL meteorite name.
Abbreviation: GRV 050384
Observed fall: No
Year found: 2006
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass:help 0.76 g
Classification
  history:
Meteoritical Bulletin:  MB 95  (2009)  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 23 Dec 2008
Writeuphelp
Writeup from MB online:

Grove Mountains 050384 (GRV 050384)        72° 53' 17"S,  75° 12' 21"E

Antarctica

Found: 8 January 2006

Classification: Carbonaceous chondrite (CM2)

History: The meteorite was found on blue ice west of the middle segment of Gale Escarpment in Grove Mountains by Y. Lin. The hand specimen has a kidney-like shape mostly covered by a black fusion crust. The meteorite weighs 0.76 g.

Petrography: (C. Li and G. Zhang, NAOC; A. Rubin, UCLA) The thin section displays a chondritic texture, with chondrules’ sizes ranging from 30 to 450 μm (mean value on about 30 chondrules = 90 μm). Aqueous alteration is highly developed in both chondrules and matrix. Hydrated phases, including Fe-rich serpentine and tochilinite (PCPs), are ubiquitous within the matrix. Most olivines in chondrules or fragments show a pronounced compositional zoning with Mg-rich cores and Fe-rich rims. The minor phases are kamacite, taenite, troilite and rare pentlandite. Refractory inclusions are rare and consist of anorthite and forsterite. Some grains of Ca carbonate are present in the matrix.

Geochemistry: (G. Zhang, C. Li, Z. Liu and Z. Ouyang, NAOC) Olivine composition in Chondrules or fragments is variable (Fa0.6-88.7, mean Fa31.2, n=44). Low-Ca pyroxene is predominant (En70.3-94.1, mean En74.7, Fs5.3-29.1, mean Fs23.7, Wo0.5-2.3, mean Wo1.7, n=23).

Classification: Carbonaceous chondrite (CM2)

Specimens: All of the sample mass and a polished thin section are on deposit at PRIC.

Data from:
  MB95
  Table 5
  Line 446:
Date:1/8/2006
Latitude:72°53'17"S
Longitude:75°12'21"E
Mass (g):0.76
Pieces:1
Class:CM2
Classifier:NAOC and UCLA
Type spec location:PRIC
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)
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
NAOC: National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China (institutional address)
Catalogs:
Search for this meteorite in the Chinese meteorite database (CHINARE):   
References: Published in Meteoritical Bulletin, no. 95, MAPS 44, 429-462 (2009)
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Geography:

Antarctica
Coordinates:
     Recommended::   (72° 53' 17"S, 75° 12' 21"E)

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