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Outer Recovery Icefields 19099
Basic information Name: Outer Recovery Icefields 19099
     This is an OFFICIAL meteorite name.
Abbreviation: OUT 19099
Observed fall: No
Year found: 2019
Country: Antarctica [Collected by the Lost Meteorites of Antarctica project, UK]
Mass:help 9.1 g
Recommended:  L5    [explanation]

This is 1 of 8373 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 26 May 2022
Writeup from MB 111:

Outer Recovery Icefields 19099 (OUT 19099)        81°30.24833’S, 17°55.92667’W


Find: 2019 Dec 29

Classification: Ordinary chondrite (L5)

History: The meteorite was recovered as part of the Lost Meteorites of Antarctica project, which was funded in the UK by the Leverhulme Trust and supported by the British Antarctic Survey and the University of Manchester. These samples were collected as part of the project’s second field season in austral summer December 2019 - January 2020 by a six person field party consisting of Katherine Joy, Geoffrey Evatt, Romain Tartèse, Wouter Van Verre, Taff Raymond and Rob Taylor. Found on blue ice surface in suncup, snow surrounding at Outer Recovery 3 (west) Icefields. Altitude 1413 m.

Physical characteristics: Mass: 9.108 g. Pieces: 1. Dimensions: 3 × 1.5 × 0.5 cm. An irregular, part stone with 30% dull black fusion crust and light grey interior with rust patches.

Petrography: Abundant well-defined chondrules (up to 1.5 mm in diameter) and coarse-grained matrix. Metal and sulfide (up to 0.9 mm) distributed throughout, some rimming chondrules. Plagioclase grains up to 0.4 mm.

Geochemistry: Mineral compositions and geochemistry: All analyses by EPMA. Olivine Fa25.2±0.2 (N=8). Pyroxene Fs21.1±0.1Wo1.4±0.1 (N=9). Plagioclase An10.6±1.2Ab85.2±2.2Or4.3±1.2 (N=3).

Classification: ordinary chondrite (L5)

Specimens: 7.25 g type specimen (main mass) held at the NHM London.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Outer Recovery 3 (west) Icefields
Date:2019 Dec 29
Mass (g):9.108
Weathering grade:B
Fayalite (mol%):25.2±0.2 (N=8)
Ferrosilite (mol%):21.1±0.1 (N=9)
Wollastonite (mol%):1.4±0.1 (N=9)
Magnetic suscept.:4.91
Classifier:J. L. MacArthur, K. H. Joy and R. H. Jones, UMan
Type spec mass (g):7.25
Type spec location:NHM
Main mass:NHM
Finder:Katherine Joy
Comments:Field ID:000099 BAS ID: Z19.2.46; submitted by J. L. MacArthur, UMan
   and collections
NHM: Department of Mineralogy, The Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom; Website (institutional address; updated 9 Dec 2011)
UMan: Department of Earth Sciences, University of Manchester, Oxford Road, Manchester, M139PL, United Kingdom (institutional address)
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Public domain photographs:
Jane MacArthur      

     Recommended::   (81° 30' 15"S, 17° 55' 56"W)

     This is 1 of 43499 approved meteorites from Antarctica (plus 3802 unapproved names)
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