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Lewis Cliff 88415 | |||||||||||||||||||||
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Basic information | Name: Lewis Cliff 88415 This is an OFFICIAL meteorite name. Abbreviation: LEW 88415 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 7.4 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: 5164 | ||||||||||||||||||||
Writeup |
Writeup from AMN 14(1):
Sample No: LEW88415 Location: Lewis Cliff Field Number: 5164 Dimensions (cm): 2.6 x 2.1 x 1 Weight (g): 7.4 Meteorite Type: H3 chondrite
Macroscopic Description: Robbie Marlow Weathered brown fusion crust covers approximately three-quarters of the exterior of this unequilibrated chondrite. The millimeter sized inclusions seen have weathered to an orangish color. A small amount of evaporite deposit was noted.
Thin Section (,2) Description: Brian Mason The section shows numerous chondrules and chondrule fragments, up to 1.8 mm across, in a granular matrix of olivine and pyroxene with minor amounts of nickel-iron and troilite. Weathering is minor, indicated by a little brown limonitic staining. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa8-25, mean Fa19 (CV FeO is 23); pyroxene, Fs6-16. 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 H3.7).
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Data from: MB76 Table 2 Line 4263: |
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Catalogs: |
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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: |
Statistics: This is 1 of 44400 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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Revision history: |
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