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Lewis Cliff 86003
Basic information Name: Lewis Cliff 86003
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 86003
Observed fall: No
Year found: 1986
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1.6 g
Antarctic Meteorite Newsletter:  AMN 10(2)  (1987)  Eucrite-br
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 391 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Field number: 3426
Writeup from AMN 10(2):

Sample No.: LEW86003

Location: Lewis Cliff

Weight (g): 1.6

Field No.: 3426

Dimensions (cm): 1.5 x 1.0 x 0.5

Meteorite Type: Eucrite (Brecciated)


Macroscopic Description: Roberta Score

LEW86003 is mostly covered with dull black fusion crust. Ninety percent of the interior has a basaltic texture; is light gray in color with minor black inclusions. Ten percent of the interior is jet black. This area contains minor inclusions and is more oxidized than the lighter material. There is a sharp contact between these two areas.


Thin Section (,3) Description: Brian Mason

Most of the section is an ophitic intergrowth of pyroxene and plagioclase, the plagioclase laths up to 0.9 mm long; one end is sharply bounded by an area of subophitic to gabbroic clasts, up to 1.8 mm across, in a dark brown glassy matrix. Mineral compositions are similar throughout. Pyroxene compositions range from Wo2Fs64 to Wo43Fs27, with fairly uniform En contents; plagioclase compositions are An67-91. The meteorite is a brecciated eucrite.

Data from:
  Table 2
  Line 3046:
Origin or pseudonym:Lower Ice Tongue
Mass (g):1.6
Class:Eu "pm"
Weathering grade:B
Ferrosilite (mol%):26-64
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References: Published in Antarctic Meteorite Newsletter 10(2) (1987), 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' 17"S, 161° 25' 17"E)
Note: the NHM and MetBase coordinates are 4.9 km apart

     This is 1 of 43700 approved meteorites from Antarctica (plus 3802 unapproved names)
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