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Lewis Cliff 88007
Basic information Name: Lewis Cliff 88007
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 88007
Observed fall: No
Year found: 1988
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 8.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 13(2)  (1990)  Eucrite
AMN 17(1)  (1994)  Eucrite-pmict
Meteoritical Bulletin:  MB 76  (1994)  Eucrite-pmict
NHM Catalogue:  5th Edition  (2000)  Eucrite-pmict
MetBase:  v. 7.1  (2006)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 339 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Field number: 4610
Writeuphelp
Writeup from AMN 13(2):

Sample No. LEW88007

Location: Lewis Cliff

Dimensions (cm): 2.6x2x1.5

Field Number: 4610

Weight (g): 8.4

Meteorite Type: Monomict Eucrite

 

Macroscopic Description: Robbie Marlow

Seventy-five percent of the exterior of this achondrite is covered with shiny and dull fusion crust. The interior shows an even distribution of mafic and nonmafic minerals. No individual clasts were noted. Small areas of oxidation are present.

 

Thin Section (,5) Description: Brian Mason,

The section shows an ophitic intergrowth of pigeonite and plagioclase, with trace amounts of opaque minerals. The grain size and texture vary considerably within the section, suggesting a recrystallized breccia. Microprobe analyses show pyroxene ranging in composition from Wo2Fs60 to Wo40Fs26, with relatively uniform En content. Plagioclase ranges in composition from An85 to An91, with a mean of An90. The meteorite is a monomict eucrite.

 

Data from:
  MB76
  Table 2
  Line 3864:
Origin or pseudonym:Upper Ice Tongue
Mass (g):8.4
Class:Eu "pm"
Weathering grade:A/B
Ferrosilite (mol%):25-60
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:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (84° 17'S, 161° 5'E)
     Recommended::   (84° 16' 33"S, 161° 24' 39"E)
Note: the NHM and MetBase coordinates are 3.7 km apart

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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