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Lewis Cliff 88012 | |||||||||||||||||||||||||
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Basic information | Name: Lewis Cliff 88012 This is an OFFICIAL meteorite name. Abbreviation: LEW 88012 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 3.8 g | ||||||||||||||||||||||||
Classification history: |
This is 1 of 658 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||
Comments: | Field number: 6180 | ||||||||||||||||||||||||
Writeup |
Writeup from AMN 13(2):
Sample No. LEW 88012 Location: Lewis Cliff Dimensions (cm): 1.9x1.5x1 Field Number: 6180 Weight (g): 3.8 Meteorite Type: Ureilite
Macroscopic Description: Robbie Marlow LEW88012 has dull brownish-black fusion crust covering 75% of the exterior. Heavy oxidation and abundant mineral grains showing crystal faces are characteristic of this ureilite.
Thin Section (,3) Description: Brian Mason The section shows an aggregate of olivine and pyroxene, as rounded to subhedral grains 0.3-1.5 mm in maximum dimension. The grains are rimmed with black carbonaceous material, which contains trace amounts of nickel-iron and troilite. Microprobe analyses show olivine and pyroxene of uniform composition: olivine, Fa9 (CaO 0.35%, Cr2O3 0.55%); pyroxene, Wo5Fs8. One grain of augite, Wo36Fs5, was analysed. The meteorite is a ureilite, and is relatively unshocked. It is very similar in texture and mineral compositions to LEW 85440, and the possibility of pairing should be considered.
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Data from: MB76 Table 2 Line 3869: |
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Catalogs: |
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References: | Published in Antarctic Meteorite Newsletter 13(2) (1990), 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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