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| Lewis Cliff 86001 | |||||||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 86001 This is an OFFICIAL meteorite name. Abbreviation: LEW 86001 Observed fall: No Year found: 1986 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  291 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 408 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||
| Comments: | Field number: 4966 | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 10(2):
Sample No.: LEW86001 Location: Lewis Cliff Weight (g): 290.6 Field No.: 4966 Dimensions (cm): 8.5 x 5 x 4 Meteorite Type: Eucrite
Macroscopic Description: Roberta Score Dull black fusion crust covers 80% of LEW86001. Large vugs, typical of all Antarctic eucrites, are abundant. Exterior surfaces without fusion crust have a dirty gray color and show some small inclusions. Some oxidation is present. The interior is lighter gray in color and has areas of heavy oxidation. Numerous clasts some as large as 0.5 cm are present.
Thin Section (,6) Description: Brian Mason The section shows a groundmass of comminuted pyroxene and plagioclase (grains up to 0.5 mm), with numerous clasts up to 3 mm across. The clasts consist of pyroxene and plagioclase, with a variety of textures from fine-grained granular to ophitic to gabbroic. A small amount of opaques is present. Microprobe analyses show pyroxene compositions clustered around Wo2Fs56 but ranging to Wo44Fs22, with fairly uniform En content. Plagioclase compositions are An76-88. The meteorite is a eucrite. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 3044: |
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| References: | Published in Antarctic Meteorite Newsletter 10(2) (1987), 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 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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| Revision history: |
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