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| Grove Mountains 021788 | |||||||||||||
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| Basic information | Name: Grove Mountains 021788 This is an OFFICIAL meteorite name. Abbreviation: GRV 021788 Observed fall: No Year found: 2003 Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)] Mass:  24.9 g | ||||||||||||
| Classification history: |
This is 1 of 542 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||
| Writeup |
Writeup from MB 89:
Grove Mountains 021788 Antarctica Found 2003 Achondrite (ureilite) This meteorite weighs 24.9 g, and is somewhat cone-shaped. The surface is partially covered with black fusion crust. Classification and mineralogy (NU): It consists mainly of coarse-grained (0.5 - 2.0 mm) silicates (~70 vol%) embedded in fine-grained carbonaceous matrix. Modal abundances: olivine 45 vol%, pyroxene 50 vol%, carbonaceous matrix <5 vol%. Pyroxene (Fs22.6) and the core of olivine (Fa22.3) are homogeneous. However, olivine is characterized by occurrence of reduced zones (~100 μm wide, Fa1.5) along its embayed boundaries and cracks. Abundant tiny metallic Fe (<1 vol%) is enclosed in the reduced zones and in the C-rich matrix. The coarse-grained olivines show triple junctions. Shock stage is S3; weathering grade is W3. | ||||||||||||
| Data from: MB89 Table 4 Line 46: |
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| Institutions and collections |
NU: School of Earth Sciences and Engineering, Nanjing University, #163 Xianlin Avenue, Nanjing 210023, China, China (institutional address; updated 18 Jul 2015) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Geography:
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Statistics: This is 1 of 40719 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||
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