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Grove Mountains 020090
Basic information Name: Grove Mountains 020090
     This is an OFFICIAL meteorite name.
Abbreviation: GRV 020090
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass:help 7.5 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Martian (lherzolite)
MetBase:  v. 7.1  (2006)  Shergottite-lherzolitic
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 189 approved meteorites (plus 1 unapproved name) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Writeuphelp
Writeup from MB 89:

Grove Mountains 020090

Antarctica

Found 2003

Martian meteorite (lherzolite)

This stone weighs 7.54 g, and measures 24 mm ´ 22 mm ´ 20 mm in size. It has a nearly complete glazy fusion crust with clearly visible flow lines. Classification and Mineralogy (CAS): It consists of poikilitic and interstitial parts. The poikilitic part is composed of several pyroxene oikocrysts, each having a pigeonite core and a thick augite rim and enclosing several euhedral grains of olivine and chromite. The interstitial part consists of olivine and pigeonite and maskelynite, with accessory laths of merrillite coexisting with maskelynite. Magma inclusions occur mainly in olivine and a few in pyroxene oikocrysts. Mineral chemistry: olivine, Fa30-40; pigeonite, En60-72Fs24-29Wo3-14; augite, En47-52Fs16-19Wo31-36; maskelynite, An37-57Ab41-58Or1-6; MnO/FeO ratio of pyroxenes, 26.4. Shock stage, S5; weathering grade, W1. This meteorite is unlikely to be paired with GRV 99027, another Martian lherzolite found in the same region, based on their distinct petrographical and mineral chemical features.

Data from:
  MB89
  Table 4
  Line 15:
Date:4 Jan 2003
Latitude:72°59'58"S
Longitude:75°15'40"E
Mass (g):7.5
Class:Martian
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° 59' 58"S, 75° 15' 40"E)

Statistics:
     This is 1 of 38937 approved meteorites from Antarctica (plus 5051 unapproved names)
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