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Graves Nunataks 98019 | |||||||||||||||||||||||||||||||||||||||||
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Basic information | Name: Graves Nunataks 98019 This is an OFFICIAL meteorite name. Abbreviation: GRA 98019 Observed fall: No Year found: 1998 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: ![]() | ||||||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 218 approved meteorites classified as Eucrite-br. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from AMN 23(1):
Thin Section Description: Tim McCoy
These meteorites are dominated by fine-grained (~200 micron average grain size) basaltic material which occurs as both the host and clasts within these meteorites. Occasional coarser-grained clasts, with grain sizes up to 0.5 mm, are observed in some members of the group, including GRA 98042, GRA 98052 and GRA 98055. Mineral compositions are similar and homogeneous with orthopyroxene (Fs64Wo2), with lamellae of augite (Fs28Wo44), and plagioclase (An89Or0.5). The Fe/Mn ratio of the pyroxene is ~28. The meteorites are brecciated eucrites. | ||||||||||||||||||||||||||||||||||||||||
Data from: MB84 Table A1 Line 20: |
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Catalogs: |
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References: | Published in Antarctic Meteorite Newsletter 23(1) (2000), JSC, Houston Published in Meteoritical Bulletin, no. 84, MAPS 35, A199-A225 (2000)
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Geography:![]() |
Statistics: This is 1 of 43700 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||||||||||||||||||
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