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Ooldea 013
Basic information Name: Ooldea 013
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2013
Country: Australia
Mass:help 25 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  L5
Recommended:  L5    [explanation]

This is 1 of 7139 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 2 Feb 2019
Writeuphelp
Writeup from MB 108:

Ooldea 013        30°30’21.89"S, 131°48’29.78"E

South Australia, Australia

Find: 10 Apr 2013

Classification: Ordinary chondrite (L5)

History: Two broken fragments specimen found by J Kuyken

Physical characteristics: Partial fusion crust with rubbly looking broken interior, weathered brown with some lichen attached.

Petrography: (J. Savage, Monash) This meteorite is a genomict breccia consisting of two fragments. Nonporphyritic chondrules >1 mm are identifiable in one fragment amongst fine-grained matrix of plagioclase/maskelynite, pyroxene and olivine (chondrule types: PP, POP, RP, BO, PO, C). The other breccia fragment has lost all chondrule texture, with the exception of one 1.2 mm POP chondrule with a thick troilite rim. The contact between the two fragment types is gradational. All olivine, pyroxene and plagioclase show undulose extinction; some pyroxene and olivine grains have shock lamellae, and multiple olivine grains exhibit mosaicism. Fe-Ni metal shows<10% weathering, troilite <5%.

Geochemistry: (J. Savage, Monash) Microprobe analyses show that olivine and pyroxene compositions are uniform: olivine Fa23.1-24.4, mean Fa23.8, std=0.5, n=4; Low-Ca pyroxene Fs19.6-20.5, mean Fs20.13, std=0.47, n=5.

Classification: Ordinary Chondrite (L5-6, S4, W1).

Data from:
  MB108
  Table 0
  Line 0:
State/Prov/County:South Australia
Origin or pseudonym:Nullarbor Plain
Date:10 Apr 2013
Latitude:30°30'21.89"S
Longitude:131°48'29.78"E
Mass (g):25.0
Pieces:2
Class:L5
Shock stage:S4
Weathering grade:W1
Fayalite (mol%):23.8
Ferrosilite (mol%):20.13
Classifier:J. Savage, Monash
Type spec mass (g):19.4
Type spec location:Monash
Main mass:Monash
Finder:J. Kuyken
Comments:Submitted by A. Tomkins
Institutions
   and collections
Monash: Building 28 School of Geosciences Monash University Victoria 3800 Australia, Australia (institutional address; updated 12 Dec 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography:

Australia
Coordinates:
     Recommended::   (30° 30' 22"S, 131° 48' 30"E)

Statistics:
     This is 1 of 238 approved meteorites from South Australia, Australia (plus 2 unapproved names) (plus 4 impact craters)
     This is 1 of 714 approved meteorites from Australia (plus 45 unapproved names) (plus 27 impact craters)
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