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| Lewis Cliff 88763 | |||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 88763 This is an OFFICIAL meteorite name. Abbreviation: LEW 88763 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  4.1 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 53 approved meteorites classified as Brachinite. [show all] Search for other: Brachinites, Primitive achondrites | ||||||||||||||||||||
| Comments: | Field number: 4475 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 14(2):
Sample No.: LEW88763 Location: Lewis Cliff Field Number: 4475 Dimensions (cm): 2.0 x 1.6 x 0.6 Weight (g): 4.1 Meteorite Type: Achondrite, Brachina-like
Macroscopic Description: Robbie Marlow, Thick rough, dull, black fusion crust covers 95% of this meteorite. The exposed interior is dark in color and crystalline with a massive texture.
Thin Section (.21 Description: Brian Mason The section consists largely of an equigranular aggregate of anhedral olivine (grain size 0.3-0.6 mm), with minor amounts of plagioclase and pyroxene and a little opaque material. Well-preserved fusion crust, 1.2 mm thick, borders part of the section. Microprobe analyses give the following compositions: olivine, Fa33; pyroxene, Wo35Fs18; plagioclase An21. The meteorite is an achondrite, very similar to Brachina in texture and mineral compositions.
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| Data from: MB76 Table 2 Line 4603: |
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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 40719 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||
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