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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:
Meteoritical Bulletin:  MB 111  (2023)  Lunar
Recommended:  Lunar    [explanation]

This is 1 of 108 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 Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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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 45039 approved meteorites from Antarctica (plus 3472 unapproved names)
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