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| Lewis Cliff 88286 | |||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 88286 This is an OFFICIAL meteorite name. Abbreviation: LEW 88286 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  3.9 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 95 approved meteorites classified as L3.5. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Comments: | Field number: 6003 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 15(2):
Sample No.: LEW88286 Location: Lewis Cliff Field Number: 6003 Dimensions (cm): 2.5 x 0.9 x 0.7 Weight (g): 3.9 Meteorite Type: L3 chondrite
Macroscopic Description: Cecilia Satterwhite, Pitted, dull, brown fusion crust covers most of this chondrite. Abundant chondrules/inclusions are present in the weathered dark matrix. Some metal was noted.
Thin Section (,2) Description: Brian Mason The section shows a close-packed aggregate of chondrules and chondrule fragments, up to 1.8 mm across; most of the chondrules are rimmed with black opaque material. The matrix consists of finely granular olivine and pyroxene with a little nickel-iron and troilite. Weathering is extensive, with brown limonitic staining throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa3-34, mean Fa18 (CV FeO is 48); pyroxene, Fs2-24. The variability of olivine and pyroxene compositions indicates type 3, and the amount of nickel-iron L group, hence the meteorite is classified as an L3 chondrite (estimated L3.5).
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| Data from: MB76 Table 2 Line 4140: |
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| References: | Published in Antarctic Meteorite Newsletter 15(2) (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 40744 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||
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