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| Lewis Cliff 88758 | |||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 88758 This is an OFFICIAL meteorite name. Abbreviation: LEW 88758 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  5 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 24 approved meteorites classified as LL3.4. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Comments: | Field number: 5620 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 15(1):
Sample No.: LEW88758 Location: Lewis Cliff Field Number: 5620 Dimensions (cm): 2.1 x 1.5 x 0.9 Weight (g): 5.0 Meteorite Type: LL3 chondrite
Macroscopic Description: Robbie Marlow Shiny, dark brown fusion crust covers nearly half the exterior of this extremely weathered meteorite. The interior consists of dark brown matrix with some orangish colored inclusions/chondrules.
Thin Section (,2) Description: Brian Mason The section shows abundant chondrules and chondrule fragments, up to 1.7 mm across, in a fine-grained dark matrix which contains trace amounts of nickel-iron and troilite. Weathering is extensive, with brown limonitic staining throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa2-32, mean Fa16 (CV FeO is 57); pyroxene, Fs2-27. The variability of olivine and pyroxene compositions indicates type 3, and the amount of nickel-iron LL group, hence the meteorite is classified as an LL3 chondrite (estimated LL 3.4).
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| Data from: MB76 Table 2 Line 4598: |
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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 43857 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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