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| Elephant Moraine 90757 | |||||||||||||||||||||
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| Basic information | Name: Elephant Moraine 90757 This is an OFFICIAL meteorite name. Abbreviation: EET 90757 Observed fall: No Year found: 1990 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  3.7 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 78 approved meteorites classified as Aubrite. [show all] Search for other: Achondrites, Aubrites, Enstatite achondrites, and Enstatite-rich meteorites | ||||||||||||||||||||
| Writeup |
Writeup from AMN 17(1):
Sample No.: EET90757 Location: Elephant Moraine Dimensions (cm): 2.2 x 1.1 x 1.0 Weight (g): 3.7 Meteorite Type: Aubrite
Macroscopic Description: Robbie Marlow EET90757 is slightly weathered, slightly friable, and completely devoid of fusion crust. Cleaving this specimen revealed a pure white interior matrix with sulfide grains of various sizes scattered throughout.
Thin Section (,2) Description: Brian Mason The section has brecciated texture, with pyroxene clasts up to 3 mm across in a comminuted groundmass of the same mineral. A little accessory nickel-iron and sulfide was noted. The meteorite appears to be unweathered. The pyroxene is essentially pure enstatite (FeO less than 0.1%, CaO 0.4-0.9%). One grain of plagioclase, Ab91Or4An5, was analyzed. The meteorite is an aubrite.
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| Data from: MB79 Table 2 Line 38: |
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| References: | Published in Antarctic Meteorite Newsletter 17(1) (1994), JSC, Houston Published in Meteoritical Bulletin, no. 79, MAPS 31, A161-A174 (1996)
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Geography:
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Statistics: This is 1 of 43856 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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