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Grove Mountains 150357
Basic information Name: Grove Mountains 150357
     This is an OFFICIAL meteorite name.
Abbreviation: GRV 150357
Observed fall: No
Year found: 2015
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass:help 11.7 g
Classification
  history:
Recommended:  Lunar    [explanation]

This is 1 of 99 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 12 Nov 2022
Writeuphelp
Writeup from MB 111:

Grove Mountains 150357 (GRV 150357)        72°56’9"S, 75°19’1"E

Antarctica

Find: 2015-12-29

Classification: lunar (polymict breccia)

History: During 2015/2016 field season, this sample (665 in total) was collected by the 32nd CHINARE in Grove Mountains, East Antarctica.

Physical characteristics: A single stone. The fresh interior exhibits some lighter colored clasts within a dominant black matrix.

Petrography: Petrology (Z. Xia, B. Miao, GUT): The polished thin section of this meteorite shows a distinct breccia texture, with many lithic clasts and mineral fragments embedded in the heterogeneous glassy matrix contaning fine-grained minerals. The lithic clasts includes crystalline impact melt, basalt, anorthosite, troctolite, norite/gabbro, symplectite (hedenbergite+fayalite+quartz), etc. Dominant mineral fragments are plagioclase, olivine and pyroxene. The pyroxene fragments with exsolution is common. Accessory phases are ilmenite, chromite, spinel, troilite and quartz.

Geochemistry (Z. Xia, B. Miao, GUT): Heterogeneous glassy matrix: Al2O3: 12.5-28.77 wt% (avg. 22.4 wt%), MgO: 7.82-16.39 wt% (avg. 12.1 wt%), FeO:3.79-22.54 wt% (avg.14.3 wt%) (n=15). Plagioclase in basaltic clast: An92.5-94.3 (n=3). Plagioclase in anorthositic clast, An95.2-97.3 (n=7). Olivine fragments: Fo41.4-53.5 (Fe/Mn=77-94, n=13). Low-Ca pyroxene Fs32.7-48.9Wo1.9-14.9 (Fe/Mn=50-64, n=13) with exsolution lamellae of high-Ca?pyroxene Fs19.5-36.6Wo20.6-41.9 (Fe/Mn=45-59, n=9). Symplectite: hedenbergite Fs44.2Wo41.0; fayalite Fs89.1.

Classification: Lunar (polymict breccia).

Specimens: The main mass and one polished thin section are on deposited at PRIC.

Data from:
  MB111
  Table 0
  Line 0:
Origin or pseudonym:ice field
Date:2015-12-29
Latitude:72°56'9"S
Longitude:75°19'1"E
Mass (g):11.73
Pieces:1
Class:Lunar (polymict breccia)
Classifier:Z. Xia, B. Miao, GUT
Type spec mass (g):11.73
Type spec location:PRIC
Main mass:PRIC
Finder:CHINARE
Comments:LY 001 (Appears in Chinese literature); submitted by Bingkui Miao
Institutions
   and collections
PRIC: Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200129, China; Website (institutional address; updated 9 Apr 2013)
GUT: College of Earth Sciences, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, China (institutional address; updated 18 Oct 2012)
Catalogs:
Search for this meteorite in the Chinese meteorite database (CHINARE):   
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
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Photos:
CreditPhotos
Public domain photographs:
Bingkui Miao, Zhipeng Xia                        
Geography:

Antarctica
Coordinates:
     Recommended::   (72° 56' 9"S, 75° 19' 1"E)

Statistics:
     This is 1 of 43699 approved meteorites from Antarctica (plus 3802 unapproved names)
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