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Lewis Cliff 88536 | |||||||||||||||||||||
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Basic information | Name: Lewis Cliff 88536 This is an OFFICIAL meteorite name. Abbreviation: LEW 88536 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 2.6 g | ||||||||||||||||||||
Classification history: |
This is 1 of 22 approved meteorites classified as LL3.5. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
Comments: | Field number: 5381 | ||||||||||||||||||||
Writeup |
Writeup from AMN 14(2):
Sample No.: LEW88536 Location: Lewis Cliff Field Number: 5381 Dimensions (cm): 1.5 x 1 x 0.7 Weight (g): 2.6 Meteorite Type: LL3 chondrite
Macroscopic Description: Cecilia Satterwhite Black fusion crust with orangish oxidation haloes covers 95% of this stone. Abundant inclusions/chondrules were exposed when this unequilibrated chondrite was cleaved. The matrix is brown to black in color.
Thin Section (,2) Description: Brian Mason The section shows a close-packed aggregate of chondrules and chondrule fragments, up to 1.5 mm across, in a fine-grained dark matrix which contains a little nickel-iron and troilite. Brown limonitic staining pervades the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa3-22, mean Fa13 (CV FeO is 45); pyroxene, Fs2-15. 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 LL3.5).
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Data from: MB76 Table 2 Line 4380: |
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Catalogs: |
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References: | Published in Antarctic Meteorite Newsletter 14(2) (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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