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Watson 024
Basic information Name: Watson 024
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2015
Country: Australia
Mass:help 26.6 g
Meteoritical Bulletin:  MB 108  (2020)  EL6
Recommended:  EL6    [explanation]

This is 1 of 130 approved meteorites classified as EL6.   [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites
Comments: Approved 21 Nov 2019
Writeup from MB 108:

Watson 024        30° 29’ 07.3"S, 131° 41’ 08.6"E

South Australia, Australia

Find: 2015 Apr 08

Classification: Enstatite chondrite (EL6)

History: Single stone found amongst limestone gibber by H. Brand.

Physical characteristics: Flatish weathered looking stone lacking fusion crust.

Petrography: (D. Steele) Relict ~0.6 mm wide chondrules are poorly defined in a strongly recrystallised matrix. Surviving chondrule type is predominantly RP. Mineralogy consists of ensatite, plagioclase, Fe-Ni metal and graphite. Pyroxene displays undulose extinction and planar fractures. Fe-Ni metal is 70% - 90% replaced by Fe oxides.

Geochemistry: (D. Steele, A. Tomkins) Microprobe analysis shows pyroxene compositions are uniform: Enstatite Fs0.14-1.09, mean = Fs0.47±0.38Ens97.97Wo1.56, n = 5. Metal averages 1.10 wt.% Si.

Classification: Enstatite Chondrite (EL6, S2, W4)

Data from:
  Table 0
  Line 0:
State/Prov/County:South Australia
Origin or pseudonym:Nullarbor Plain
Date:2015 Apr 08
Latitude:30° 29' 07.3"S
Longitude:131° 41' 08.6"E
Mass (g):26.6
Shock stage:S2
Weathering grade:W3
Ferrosilite (mol%):0.47
Wollastonite (mol%):1.56
Classifier:A. Tomkins, D. Steele, Monash
Type spec mass (g):26
Type spec location:Monash
Main mass:Monash
Finder:H. Brand
Comments:Submitted by A. Tomkins
   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. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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     Recommended::   (30° 29' 7"S, 131° 41' 9"E)

     This is 1 of 240 approved meteorites from South Australia, Australia (plus 3 unapproved names) (plus 4 impact craters)
     This is 1 of 718 approved meteorites from Australia (plus 46 unapproved names) (plus 27 impact craters)
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