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| Lewis Cliff 86526 | |||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 86526 This is an OFFICIAL meteorite name. Abbreviation: LEW 86526 Observed fall: No Year found: 1986 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  14.1 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 78 approved meteorites classified as H3.8. [show all] Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Comments: | Field number: 4959 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 14(1):
Sample No: LEW86526 Location: Lewis Cliff Field Number: 4959 Dimensions (cm): 2.5 x 2 x 1 Weight (g): 21.8 Meteorite Type: H3 Chondrite
Macroscopic Description: Cecilia Satterwhite Weathered fusion crust covers the entire meteorite. The interior is weathered but white and orange inclusions, 2-3 mm in size, are still visible.
Thin Section (,1) Description: Brian Mason The section shows numerous chondrules and chondrule fragments, up to 1.2 mm across, in a granular matrix of olivine and pyroxene with minor amounts of nickel-iron and troilite. The meteorite is somewhat weathered, with brown limonitic staining throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa13-22, mean Fa17 (CV FeO is 14); pyroxene, Fs9-14. The amount, of nickel-iron suggests H group, and the variability of olivine and pyroxene compositions type 3, hence the meteorite is classified as an H3 chondrite (estimated H3.8).
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| Data from: MB76 Table 2 Line 3557: |
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| References: | Published in Antarctic Meteorite Newsletter 14(1) (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 40756 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||
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