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| Lewis Cliff 88621 | |||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 88621 This is an OFFICIAL meteorite name. Abbreviation: LEW 88621 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  7.5 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 51 approved meteorites classified as L3.7. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Comments: | Field number: 5519 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 15(1):
Sample No.: LEW88621 Location: Lewis Cliff Field Number: 5519 Dimensions (cm): 2.0 x 1.8 x 1.1 Weight (g): 7.5 Meteorite Type: L3 chondrite
Macroscopic Description: Robbie Marlow Dull, frothy fusion crust covers 95% of this weathered meteorite. Any features present have been obliterated by oxidation.
Thin Section .2) Description Brian Mason The section shows a.close-packed aggregate of chondrules and chondrule fragments, up to 1.8 mm across, in a fine-grained matrix of olivine and pyroxene with a small amount of nickel-iron and troilite. Extensive weathering is indicated by brown limonitic staining throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa7-20, mean Fa16 (CV FeO is 24); pyroxene, Fs3-25. The variability of olivine and pyroxene compositions indicates type 3, and the amount of nickel-iron L group, hence the meteorite is classified an an L3 chondrite (estimated L3.7).
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| Data from: MB76 Table 2 Line 4462: |
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| References: | Published in Antarctic Meteorite Newsletter 15(1) (1992), 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 44248 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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