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Ooldea 008
Basic information Name: Ooldea 008
     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 56.9 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2801 approved meteorites (plus 1 unapproved name) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 18 Jul 2015
Writeuphelp
Writeup from MB 104:

Ooldea 008        30°35’44.6"S, 131°50’53.2"E

South Australia, Australia

Purchased: 2013 Apr 20

Classification: Ordinary chondrite (LL6)

History: Five fragments found by E. Mare

Physical characteristics: 5 fragments found scatterd within a small area.

Petrography: (S. Nutku, Monash) Poorly defined chondrules with indistinct edges, ranging from 0.5mm to 1.5mm reside in strongly recrystallized matrix. Matrix mineralogy composed of olivine, pyroxene and plagioclase, crystal size range 40-200 microns. Chondrule types include, RP, POP, PP, PO and cryptocrystalline. Mineralogy includes olivine, pyroxene, plagioclase and minor Fe-Ni metal, troilite minerals. Undulatory extinction is observed in 40% of olivines. Planar fractures pervasive with larger olivine crystals showing conjugate fractures. Minor shock melting is observed. Sample is extensively weathered with only 5% Fe-Ni metal and <10% troilite remaining.

Geochemistry: (S. Nutku, Monash) Microprobe analyses show that olivine have moderately variable compositions and pyroxene have uniform compositions: olivine Fa25.0-26.9, mean Fa25.9±0.8, n=5; Low-Ca pyroxene Fs21.8-22.9, mean Fs22.3±0.5, n=5.

Classification: Ordinary chondrite (LL6, S4, W4)

Specimens: All specimens and one thin section held by A. Tomkins.

Data from:
  MB104
  Table 0
  Line 0:
State/Prov/County:South Australia
Origin or pseudonym:Nullarbor Plain
Date:P 2013 Apr 20
Latitude:30°35'44.6"S
Longitude:131°50'53.2"E
Mass (g):56.9
Pieces:5
Class:LL6
Shock stage:S4
Weathering grade:W4
Fayalite (mol%):25.9
Ferrosilite (mol%):22.3
Classifier:S. Nutku, Monash
Type spec mass (g):31.9
Type spec location:Monash
Main mass:Monash
Finder:E. Mare
Comments:Submitted by (A. Tait, A. Tomkins, A. Bowlt, S. Nutku, J. Savage)
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. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography:

Australia
Coordinates:
     Recommended::   (30° 35' 45"S, 131° 50' 53"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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