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Ooldea 020
Basic information Name: Ooldea 020
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2017
Country: Australia
Mass:help 95 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  H5
Recommended:  H5    [explanation]

This is 1 of 10209 approved meteorites (plus 18 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 23 Jan 2019
Writeuphelp
Writeup from MB 108:

Ooldea 020        30°37’23.3"S, 131°53’43.2"E

South Australia, Australia

Find: 26 Apr 2017

Classification: Ordinary chondrite (H5)

History: Single stone found by j. Mitchell

Physical characteristics: Single piece with ~50% fusion crust.

Petrography: (D. Steele) Chondrules are well-defined in a transparent microcrystalline matrix. Chondrule types include BO, GOP, GP, RP, POP, PP, and cryptocrystalline. Mineralogy consists of olivine, pyroxene, plagioclase, Fe-Ni metal and troilite. Olivine and pyroxene display straight extinction. Fe-Ni metal and troilite are ~10% replaced by Fe oxides.

Geochemistry: (D. Steele) Microprobe analysis shows olivine and pyroxene compostion is uniform: Olivine Fa18.3-19.2, mean = Fa18.8, std = 0.32, n = 5; Orthopyroxene Fs16.52-16.9, mean = 16.7, std = 0.16, n = 5.

Classification: Ordinary Chondrite (H5, S1, W1)

Data from:
  MB108
  Table 0
  Line 0:
State/Prov/County:South Australia
Origin or pseudonym:Nullarbor Plain
Date:26 Apr 2017
Latitude:30°37'23.3"S
Longitude:131°53'43.2"E
Mass (g):95.0
Pieces:1
Class:H5
Shock stage:S1
Weathering grade:W1
Fayalite (mol%):18.77
Ferrosilite (mol%):16.68
Classifier:D. Steele, Monash
Type spec mass (g):91
Type spec location:Monash
Main mass:Monash
Finder:J. Mitchell
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° 37' 23"S, 131° 53' 43"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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