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| Lewis Cliff 88462 | |||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 88462 This is an OFFICIAL meteorite name. Abbreviation: LEW 88462 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  8.1 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: 5238 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 14(2):
Sample No.: LEW88462 Location: Lewis Cliff Field Number: 5238 Dimensions (cm): 1.8 x 1.6 x 1.7 Weight (g): 8.1 Meteorite Type: L3 chondrite
Macroscopic Description: Robbie Marlow Smooth dark brown fusion crust covers 85% of this meteorite. A discontinuous weathering rind was exposed when LEW88462 was cleaved. The matrix is medium gray, contains numerous chondrules and ranges in oxidation from light to heavy.
Thin Section (,2) Description: Brian Mason The section shows numerous chondrules and chondrule fragments, up to 1.8 mm across, in a granular matrix of olivine and pyroxene with minor amounts of nickel-iron and troilite. A moderate degree of weathering is indicated by limonitic staining throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa7-18, mean Fa14 (CV FeO is 22); pyroxene, Fs3-23. The amount of nickel-iron suggests L group, and the variability of olivine and pyroxene compositions type 3, hence the meteorite is classified as an L3 chondrite (estimated L3.7).
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| Data from: MB76 Table 2 Line 4309: |
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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 44248 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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