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Lewis Cliff 88714 | |||||||||||||||||||||||||
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Basic information | Name: Lewis Cliff 88714 This is an OFFICIAL meteorite name. Abbreviation: LEW 88714 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: ![]() | ||||||||||||||||||||||||
Classification history: |
This is 1 of 130 approved meteorites classified as EL6. [show all] Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites | ||||||||||||||||||||||||
Comments: | Field number: 5654 | ||||||||||||||||||||||||
Writeup![]() |
Writeup from AMN 15(1):
Sample No.: LEW88714 Location: Lewis Cliff Field Number: 5654 Dimensions (cm): 3.5 x 3.5 x 1 Weight (g): 22.6 Meteorite Type: E6 chondrite
Smooth, shiny, brown fusion crust covers one half of this meteorite. The interior matrix is fine-grained. Oxidation is heavy, giving the interior a brown color.
Thin Section (,2) Description: Brian Mason Only vague traces of chondritic structure can be distinguished; the section consists largely of fine-grained pyroxene (grain size 0.06-0.3 mm), with a moderate amount of nickel-iron and minor troilite. Trace amounts of a colorless highly birefringent mineral, probably sinoite, were noted. Weathering is extensive, with brown limonitic staining throughout the section. Microprobe analyses show the pyroxene is almost pure MgSiO3 (FeO 0.1-0.4%, CaO 0.5-0.6%); a little plagioclase, An13, was found. The nickel-iron contains about 1.5% Si. The meteorite is an E6 chondrite; it is closely similar to LEW87119 and LEW88135, with which it may be paired. The other LEW E6 chondrite, 88180, is distinctly different, and almost unweathered.
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Data from: MB76 Table 2 Line 4554: |
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Plots: | O isotopes: | ||||||||||||||||||||||||
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References: | Published in Antarctic Meteorite Newsletter 15(1) (1992), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography:![]() |
Statistics: This is 1 of 44048 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
Proximity search: |