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LaPaz Icefield 02225
Basic information Name: LaPaz Icefield 02225
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 02225
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 260 g
Antarctic Meteorite Newsletter:  AMN 27(1)  (2004)  EH-imp melt
Meteoritical Bulletin:  MB 88  (2004)  EH-imp melt
MetBase:  v. 7.1  (2006)  EH-imp melt
Recommended:  EH-imp melt    [explanation]

This is 1 of 6 approved meteorites classified as EH-imp melt.   [show all]
Search for other: EH chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), Enstatite-rich meteorites, and Melted chondrites
Comments: Revised 28 Oct 2019: Corrected mass, per JSC
Writeup from AMN 27(1):
Sample No.: LAP 02225
Location: LaPaz Icefield
Field No.: 15434
Dimensions (cm):   7.0x7.0x3.5
Weight (g): 313.50
Meteorite Type: Enstatite (EH) Chondrite (Impact Melt)

Macroscopic Description: Kathleen McBride
Brown/black obvious fusion crust with oxidation haloes covers 75% of the exterior surface. The interior is composed of gray crystalline material with rusting and evaporites along fractures. This meteorite is hard.

Thin Section (,2) Description: Linda Welzenbach, Tim McCoy
The section consists of a matrix of small (~0.2 mm) pyroxene laths with interstitial plagioclase, metal, troilite, daubreelite, Mg,Mn,Fe-sulfides, and perryite. The latter is often exsolved on the {111} axes of the metal. Also present are ~10 vol.% large enstatite laths that can exceed 3 mm in long dimension. Enstatite is Fs0-1; plagioclase is An0Or2-3 and metal contains 3 wt.% Si. The meteorite is an enstatite chondrite impact melt, probably of EH parentage.

LAP 02225 - Cross-Polarized Light LAP 02225 - Plane-Polarized Light LAP 02225 - Reflected Light
Cross-Polarized Light Plane-Polarized Light Reflected Light
Data from:
  Table A1
  Line 15:
Mass (g):313.5
Class:EH im
Weathering grade:B
Ferrosilite (mol%):0-1
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 27(1) (2004), JSC, Houston
Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
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Photographs from AMN:
Photograph from unknown source A photo is in the write-up above
Photos from the Encyclopedia of Meteorites:
Dr Carlton Allen, JSC-KT, NASA         

     Recommended::   (86° 22'S, 70° 0'W)

     This is 1 of 44248 approved meteorites from Antarctica (plus 3802 unapproved names)
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