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Graves Nunataks 98098 | |||||||||||||||||||||
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Basic information | Name: Graves Nunataks 98098 This is an OFFICIAL meteorite name. Abbreviation: GRA 98098 Observed fall: No Year found: 1998 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: ![]() | ||||||||||||||||||||
Classification history: |
This is 1 of 131 approved meteorites classified as Eucrite-unbr. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||
Writeup![]() |
Writeup from AMN 22(2):
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Macroscopic Description: Katlheen McBride
Thin Section (,18) Description: Tim McCoy
The section consists dominantly of a mixture of mm-sized orthopyroxene (Fs59Wo5), with 1-5 micron lamellae of augite (Fs35Wo33), and plagioclase (An89Or0.5). The Fe/Mn ratio of the pyroxene is ~31. A sub-equal mixture of plagioclase and SiO2 with minor pyroxene dominates the white veins seen in hand sample. The dominant opaques are Fe, Ti-and Fe,Ti,Cr,Al-oxides with minor iron sulfide and rare iron metal. The meteorite is a eucrite.
Oxygen Isotope Analysis: Robert Clayton | ||||||||||||||||||||
Data from: MB84 Table A1 Line 99: |
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Plots: | O isotopes: | ||||||||||||||||||||
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References: | Published in Antarctic Meteorite Newsletter 22(2) (1999), JSC, Houston Published in Meteoritical Bulletin, no. 84, MAPS 35, A199-A225 (2000)
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Geography:![]() |
Statistics: This is 1 of 44248 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
Proximity search: |