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Grove Mountains 021512
Basic information Name: Grove Mountains 021512
     This is an OFFICIAL meteorite name.
Abbreviation: GRV 021512
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass:help 143.4 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Ureilite
MetBase:  v. 7.1  (2006)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 627 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Writeuphelp
Writeup from MB 89:

Grove Mountains 021512

Antarctica

Found 2003

Achondrite (ureilite)

The 143.4 g meteorite is hemisphical in shape, and most of the surface is covered with black fusion crust. Classification and Mineralogy (CAS): It consists mainly of subhedral to anhedral olivine (up to 1.0-3.5 mm in size) and a few grains of pigeonite embedded in carbonaceous matrix. Some grains of olivine have 120° triple junctions. Pigeonite (En74.5±0.3Wo8.0±0.2Fs17.5±0.2) and olivine cores (Fo79.6±0.2) are homogeneous. All grains of olivine have FeO-poor rims (Fa as low as 6.4 mol%), which contain abundant fine-grained inclusions of Ni-poor metal and sulfide. The carbonaceous matrix is composed of two distinct assemblages, i.e. most abundant fine-grained mixtures of forsterite, enstatite, Ni-poor metal and sulfides, and less abundant diamond-bearing graphite patches or veins. The presence of diamond was confirmed by Raman spectrum and CL analyses. Limonite veins are common. Shock stage, S2/S3; weathering grade, W3.

Data from:
  MB89
  Table 4
  Line 35:
Date:13 Jan 2003
Latitude:72°56'06"S
Longitude:75°19'07"E
Mass (g):143.4
Class:Ure
Classifier:B. Miao, Y. Lin, R. Lu and D. Wang, CAS
Institutions
   and collections		 CAS: 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. 89, MAPS 40, A201-A263 (2005)
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Geography:

Antarctica
Coordinates:
     Recommended::   (72° 56' 6"S, 75° 19' 7"E)

Statistics:
     This is 1 of 43856 approved meteorites from Antarctica (plus 3802 unapproved names)
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