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| Lewis Cliff 88175 | |||||||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 88175 This is an OFFICIAL meteorite name. Abbreviation: LEW 88175 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  111.3 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 51 approved meteorites classified as L3.4. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||
| Comments: | Field number: 5170 | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 13(3):
Sample No. LEW88175 Location: Lewis Cliff Dimensions (cm): 5 x 4 x 2.5 Field Number: 5170 Weight (g): 111.3 Meteorite Type: LL3 chondrite
Macroscopic Description: Cecilia Satterwhite The exterior has a small amount of dull black pitted fusion crust. Areas devoid of fusion crust are rough in texture, brown in color, and show the clastic nature of the meteorite. Oxidation is heavy in areas obscuring the interior features present. Some evaporite deposits are visible on both interior and exterior surfaces.
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 matrix of fine-grained 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, Fa5-31, mean Fa22 (CV FeO is 19); pyroxene, Fs2-25- The small amount of nickel-iron suggests LL group, and the variability of olivine and pyroxene compositions type 3, hence the meteorite is classified as an LL3 chondrite (estimated LL3.8).
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| Data from: MB76 Table 2 Line 4031: |
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| References: | Published in Antarctic Meteorite Newsletter 13(3) (1990), 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 43856 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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