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| Lewis Cliff 86220 | |||||||||||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 86220 This is an OFFICIAL meteorite name. Abbreviation: LEW 86220 Observed fall: No Year found: 1986 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  25 g | ||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 11 approved meteorites classified as Acapulcoite/Lodranite. [show all] Search for other: Acapulcoite-lodranite family, Primitive achondrites | ||||||||||||||||||||||||||||
| Comments: | Field number: 2368 | ||||||||||||||||||||||||||||
| Writeup |
Writeup from AMN 11(1):
Sample No.: LEW86220 Location: Lewis Cliff Weight (g): 25.0 Field No.: 2368 Dimensions (cm): 4x1lx1.5 Meteorite Type: Iron with silicate inclusions
Macroscopic Description: René Martinez This elongated pebble is covered with black fusion crust and at first inspection is inconspicuous. The interior however, is crystalline with what appears to be coarse-grained silicate minerals, some green, some yellow--all of these stained by oxidation. The string-like texture of the metal gives this specimen an unusual look.
Thin Section (,2) Description: Brian Mason The meteorite consists dominantly of nickel-iron with lesser amounts of silicates, as a granular aggregate with most grains in the 0.3-1.2 mm range. The silicates are olivine and pyroxene with minor plagioclase. The section is veined with brown limonite. Microprobe analyses give the following compositions: olivine, Fa7; pyroxene, Wo2Fs9; plagioclase, An15; one grain of diopside, Wo43Fs4, was analysed. The meteorite is an iron with silicate inclusions. | ||||||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 3259: |
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| References: | Published in Antarctic Meteorite Newsletter 11(1) (1988), 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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