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| Lewis Cliff 86213 | |||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 86213 This is an OFFICIAL meteorite name. Abbreviation: LEW 86213 Observed fall: No Year found: 1986 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  27.9 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 51 approved meteorites classified as L3.4. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Comments: | Field number: 2307 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 14(1):
Sample No: LEW86213 Location: Lewis Cliff Field Number: 2307 Dimensions (cm): 3 x 2.5 x 1.5 Weight (g): 27.9 Meteorite Type: L3 chondrite
Macroscopic Description: Cecilia Satterwhite Evaporite deposit is present on the thin weathered fusion crust of this meteorite. The interior is dark brown to black and contains numerous small, orangish colored inclusions.
Thin Section (,4) Description: Brian Mason The section shows numerous chondrules and chondrule fragments, up to 1.2 mm across, in a granular matrix consisting largely of olivine and pyroxene with small amounts of nickel-iron and troilite. Most of the chondrules consist of granular or porphyritic olivine and olivine-pyroxene, but a few radiating pyroxene chondrules were noted. The meteorite is considerably weathered, with brown limonite pervading the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fat-20, mean Fa11 (CV FeO is 54); pyroxene, Fs1-16. 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 L3.4).
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| Data from: MB76 Table 2 Line 3254: |
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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:
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Statistics: This is 1 of 43856 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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