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Lewis Cliff 88367
Basic information Name: Lewis Cliff 88367
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 88367
Observed fall: No
Year found: 1988
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 14 g
Antarctic Meteorite Newsletter:  AMN 14(2)  (1991)  H3
Meteoritical Bulletin:  MB 76  (1994)  H3.8
NHM Catalogue:  5th Edition  (2000)  H3.8
MetBase:  v. 7.1  (2006)  H3.8
Recommended:  H3.8    [explanation]

This is 1 of 78 approved meteorites classified as H3.8.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Field number: 4525
Writeup from AMN 14(2):

Sample No.: LEW88367

Location: Lewis Cliff

Field Number: 4525

Dimensions (cm): 3 x 2 x 1.8

Weight (g): 14.0

Meteorite Type: H3 chondrite


Macroscopic Description: Robbie Marlow

Regmaglypts are present in the dark brown fusion crust which covers 90% of this meteorite. Numerous millimeter sized chondrules/inclusions were noted in the weathered matrix. Evaporite deposit is present on the interior material.


Thin Section (,2) Description: Brian Mason

The section shows numerous chondrules and chondrule fragments, up to 1.8 mm across, in a finely granular matrix of olivine and pyroxene which contains a moderate amount of nickel-iron and troilite. Weathering is extensive, with brown limonitic staining throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa14-22, mean Fa19 (CV FeO is 11); pyroxene, Fs4-25. The amount of nickel-iron suggests H group, and the variability of olivine and pyroxene compositions type 3, hence the meteorite is classified as an H3 chondrite (estimated H3.8).


Data from:
  Table 2
  Line 4219:
Origin or pseudonym:Lower Ice Tongue
Mass (g):14
Weathering grade:B/Ce
Fayalite (mol%):14-22
Ferrosilite (mol%):4-25
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References: Published in Antarctic Meteorite Newsletter 14(2) (1991), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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     Catalogue of Meteorites:   (84° 17'S, 161° 5'E)
     Recommended::   (84° 15' 5"S, 161° 23' 22"E)
Note: the NHM and MetBase coordinates are 4.9 km apart

     This is 1 of 43352 approved meteorites from Antarctica (plus 3802 unapproved names)
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