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Mount Prestrud 95401
Basic information Name: Mount Prestrud 95401
     This is an OFFICIAL meteorite name.
Abbreviation: PRE 95401
Observed fall: No
Year found: 1995
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 186.5 g
Antarctic Meteorite Newsletter:  AMN 20(2)  (1997)  L3.4
Meteoritical Bulletin:  MB 82  (1998)  L3.4
NHM Catalogue:  5th Edition  (2000)  L3.4
MetBase:  v. 7.1  (2006)  L3.4
Recommended:  L3.4    [explanation]

This is 1 of 51 approved meteorites classified as L3.4.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Writeup from AMN 20(2):
Sample No.:PRE95401
Location:Mount Prestrud
Dimensions (cm):5.5x4.5x3.5
Weight (g):186.53
Meteorite Type:L3 Chondrite (estimated L3.4)

Macroscopic Description: Kathleen McBride
The exterior of this ordinary chondrite has thin weathered brown/black fusion crust, rusty in areas with some fractures present. The interior reveals a medium gray crystalline matrix with numerous light colored chondrules and irregularly shaped inclusions. The sample is rusty in areas and metal grains are present.

Thin Section (,2) Description: Brian Mason
The section shows numerous chondrules and chondrule fragments, up to 1.8 mm across, in a black matrix containing small amounts of nickel-iron and troilite. The chondrules are mainly granular and porphritic olivine and olivine-pyroxene, with a few radiating and cryptocrystalline pyroxene. Microprobe analyses show olivine and pyroxene of variable composition; olivine, Fa1-32, mean Fa14; pyroxene, Fs4-18. The meteorite is classified as an L3 chondrite (estimated L3.4).

PRE95401 TS - Plane Polarized LightPRE95401 TS - Cross Polarized Light
Plane-Polarized LightCross-Polarized Light
Data from:
  Table A1
  Line 302:
Origin or pseudonym:Prestrud-Bjaaland Ice Tongue
Mass (g):186.5
Weathering grade:A/B
Fayalite (mol%):1-32
Ferrosilite (mol%):4-18
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References: Published in Antarctic Meteorite Newsletter 20(2) (1997), JSC, Houston
Published in Meteoritical Bulletin, no. 82, MAPS 33, A221-A240 (1998)
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Photographs from AMN:
Photograph from unknown source A photo is in the write-up above

     Catalogue of Meteorites:   (86° 34'S, 165° 7'W)
     Recommended::   (86° 34'S, 165° 7'W)

     This is 1 of 43856 approved meteorites from Antarctica (plus 3802 unapproved names)
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