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Lewis Cliff 88280
Basic information Name: Lewis Cliff 88280
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 88280
Observed fall: No
Year found: 1988
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 6 g
Antarctic Meteorite Newsletter:  AMN 13(3)  (1990)  Achondrite-unique
AMN 14(2)  (1991)  Lodranite
Meteoritical Bulletin:  MB 76  (1994)  Lodranite
NHM Catalogue:  5th Edition  (2000)  Lodranite
MetBase:  v. 7.1  (2006)  Lodranite
Recommended:  Lodranite    [explanation]

This is 1 of 91 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Comments: Field number: 6086
Writeup from AMN 13(3):

Sample No. LEW88280

Location: Lewis Cliff

Dimensions (cm): 1.5 x 1.5 x 1.1

Field Number: 6086

Weight (g): 6.0

Meteorite Type: Achondrite (Unique)


Macroscopic Description: Cecilia Satterwhite

This achondrite's interior is entirely composed of coarse-grained crystalline material. The minerals easily disaggregated while working with the meteorite, making mineral separation a breeze! A small amount of metal was noted. Oxidation is present throughout the sample.


Thin Section (,3) Description: Brian Mason

The section shows an equigranular aggregate of anhedral to subhedral olivine and pyroxene grains, 0.6-1.2 mm across, with about 20% of intergranular nickel-iron and a little troilite. The meteorite is unweathered Microprobe analyses show olivine and pyroxene of uniform composition: olivine, Fa13; pyroxene, Wo3Fs12. The meteorite is tentatively classified as a unique achondrite. Mineral compositions are similar to those in the Acapulco-like meteorites, but the, texture is much coarser. It also resembles some inclusions from iron meteorites.

Data from:
  Table 2
  Line 4134:
Origin or pseudonym:Upper Ice Tongue
Mass (g):6
Weathering grade:B
Fayalite (mol%):13
Ferrosilite (mol%):12
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References: Published in Antarctic Meteorite Newsletter 13(3) (1990), 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° 16' 57"S, 161° 21' 32"E)
Note: the NHM and MetBase coordinates are 3.1 km apart

     This is 1 of 44048 approved meteorites from Antarctica (plus 3802 unapproved names)
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