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Ooldea 010
Basic information Name: Ooldea 010
     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 54.6 g
Meteoritical Bulletin:  MB 105  (2016)  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 22 Oct 2016
Writeup from MB 105:

Ooldea 010        30°34’10.2"S, 131°46’20.4"E

South Australia, Australia

Find: 9 Apr 2013

Classification: Ordinary chondrite (L5)

History: Single fragment with distinct chondrules found by A. Tomkins.

Physical characteristics: No fusion crust, numerous well-formed chondrules visible, 60% of the 5 cm slightly elongate sample covered by lichen.

Petrography: (J. Savage, A. Tait, Monash) Chondrule boundaries are difficult to differentiate from the matrix. Large porphyritic chondrules, ~1 mm, can be distinguished from the matrix. The matrix is no longer opaque and has an olivine-pyroxene-plagioclase composition. Matrix still maintains a large porosity. Chondrite mineralogy includes olivine, pyroxene, Fe-Ni Metal, troilite and plagioclase. Chondrule types present are BO, POP, RP, C, PP and PO. Both sharp and undulose extinction are common in olivine, pyroxene and plagioclase grains. Olivine grains shows mosaicism and conjugate pair fractures, that offset into the matrix in some grains. Fe-Ni metals exists a coarse grains (<0.6 mm) and as fine-grain inclusions in chondrules. Fe-Ni metals show minor oxidation (<10%) and is restricted to the coarse grain metals. Troilite shows <5% weathering.

Geochemistry: (J. Savage, Monash) Microprobe analyses show that olivine and pyroxene compositions are uniform: olivine Fa22.0-23.9, mean=Fa22.9±1.7, n=6; Low-Ca pyroxene Fs23.5, n=1.

Classification: Ordinary Chondrite (L5, S2, W1).

Specimens: The main mass and a thin section are held at Monash, under the curation of A. Tomkins.

Data from:
  Table 0
  Line 0:
State/Prov/County:South Australia
Origin or pseudonym:Nullarbor Plain
Date:9 Apr 2013
Mass (g):54.6
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):22.9±1.7
Classifier:J. Savage, Monash
Type spec mass (g):32
Type spec location:Monash
Main mass:Monash
Finder:A. Tomkins
Comments:Submitted by A. Tait
   and collections
Monash: Building 28 School of Geosciences Monash University Victoria 3800 Australia, Australia (institutional address; updated 12 Dec 2012)
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     Recommended::   (30° 34' 10"S, 131° 46' 20"E)

     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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