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Lewis Cliff 86495 | |||||||||||||||||||||
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Basic information | Name: Lewis Cliff 86495 This is an OFFICIAL meteorite name. Abbreviation: LEW 86495 Observed fall: No Year found: 1986 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 2.5 g | ||||||||||||||||||||
Classification history: |
This is 1 of 98 approved meteorites classified as L3.5. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
Comments: | Field number: 4896 | ||||||||||||||||||||
Writeup |
Writeup from AMN 14(1):
Sample No: LEW86495 Location: Lewis Cliff Field Number: 4896 Dimensions (cm): 1.2 x 1.4 x 0.5 Weight (g): 2.5 Meteorite Type: L3 chondrite
Macroscopic Description: Cecilia Satterwhite Although this small meteorite is completely- covered with fusion crust, the interior is very weathered, having an orangish-brown color. Some inclusions are still visible.
Thin Section (,2) Description: Brian Mason The section shows numerous chondrules and chondrule fragments, up to 1.1 mm across, in a granular matrix consisting largely of olivine and pyroxene with small amounts of nickel-iron and troilite. The meteorite is considerably weathered, with brown limonitic staining throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa1-22, mean Fa14 (CV FeO is 49); pyroxene, Fs3-17. The small amount of nickel-iron suggests L group, and the variability of olivine and pyroxene compositions type 3, hence the meteorite is classified as an L3 chondrite (estimated L3.5).
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Data from: MB76 Table 2 Line 3528: |
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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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