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| Lewis Cliff 88500 | |||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 88500 This is an OFFICIAL meteorite name. Abbreviation: LEW 88500 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  16 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 75 approved meteorites classified as H3.7. [show all] Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Comments: | Field number: 5224 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 15(1):
Sample No.: LEW88500 Location: Lewis Cliff Field Number: 5224 Dimensions (cm): 4.1 x 1.4 x 1.6 Weight (g): 16.0 Meteorite Type: H3 chondrite
Macroscopic Description: Robbie Marlow LEW88500 is mostly covered with shiny brown fusion crust. The Interior is severely weathered masking any features that may be present.
Thin Section (,2) Description: Brian Mason The section shows abundant chondrules and chondrule fragments, up to 1.9 mm across, in a finely granular matrix of olivine and pyroxene with a moderate amount of nickel-iron and a little troilite. Weathering is extensive, with limonitic staining and areas of brown limonite throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa1-20, mean Fa16 (CV FeO is 29); pyroxene, Fs7-18. The variability of olivine and pyroxene compositions indicates type 3, and the amount of nickel-iron H group, hence the meteorite is classified as an H3 chondrite (estimated H3.7).
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| Data from: MB76 Table 2 Line 4347: |
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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 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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| Revision history: |
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