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| Elephant Moraine 90024 | |||||||||||||||||||||||||
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| Basic information | Name: Elephant Moraine 90024 This is an OFFICIAL meteorite name. Abbreviation: EET 90024 Observed fall: No Year found: 1990 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  22.8 g | ||||||||||||||||||||||||
| 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 14(2):
Sample No.: EET90024 Location: Elephant Moraine Field Number: 6945 Dimensions (cm): 2.9 x 2.5 x 1.8 Weight (g): 22.8 Meteorite Type: Eucrite
Macroscopic Description: Cecilia Satterwhite The exterior of this achondrite is covered with dull black fusion crust but some patches are shiny/glassy. Areas without fusion crust are brownish in color. Gray matrix with white inclusions (plagioclase?) makes up the interior. Black glassy veins enclose small inclusions and oxidation is speckled throughout the specimen.
Thin Section (,4) Description: Brian Mason The section shows large pyroxene crystals, up to 6 mm long, with a minor amount of interstitial plagioclase. The pyroxene crystals are somewhat granulated, and both the plagioclase and the pyroxene show undulose extinction. Dark glassy veins, up to 1.2 mm across, are present. The pyroxene shows a range of compositions, from Wo2Fs60 to Wo42Fs28, with relatively uniform En content; mean composition is Wo13Fs50. Plagioclase composition is An89-92. The meteorite is a eucrite.
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| Data from: MB76 Table 2 Line 2057: |
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| References: | Published in Antarctic Meteorite Newsletter 14(2) (1991), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography:
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Statistics: This is 1 of 43700 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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