Meteoritical Bulletin: Entry for Watson 016

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Watson 016

Basic information

Name: Watson 016
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2013
Country: Australia
Mass: 38.2 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	L5
Recommended:			L5 [explanation]

This is 1 of 8890 approved meteorites (plus 5 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 18 Jul 2015

Writeup

Writeup from MB 104:

Watson 016 30°29’18.50"S, 131°44’12.90"E

South Australia, Australia

Purchased: 2013 Apr 25

Classification: Ordinary chondrite (L5)

History: One stone found by A. Tomkins.

Physical characteristics: One stone found with 90% complete fusion crust.

Petrography: (A. Tait, Monash) Sample shows extensive recrystallization of the matrix, and mesostasis. Relict chondrules include: POP, RP, C, BO, PO. Olivine grains exhibit undulose extinction and shock lamellae. Large plagioclase crystals (~50 μm) show undulose extinction. Minor oxidation rims on some FeNi/troilite grains, with minor Fe oxide veins.

Geochemistry: (A. Tait, Monash) FEG-SEM analyses show that olivine and pyroxene are uniform in their composition: olivine Fa_25.1-28.0, mean Fa25.8±0.8, n=11; Low-Ca pyroxene Fs_20.9-21.7, mean Fs_21.3±0.2 , n=9.

Classification: Ordinary chondrite (L5, S3, W1)

Specimens: Specimen 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 25
Latitude:	30°29'18.50"S
Longitude:	131°44'12.90"E
Mass (g):	38.2
Pieces:	1
Class:	L5
Shock stage:	S3
Weathering grade:	W1
Fayalite (mol%):	25.8
Ferrosilite (mol%):	21.3
Wollastonite (mol%):	1.51
Classifier:	A. Tait, Monash
Type spec mass (g):	32.8
Type spec location:	Monash
Main mass:	Monash
Finder:	A. Tomkins
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° 29' 18"S, 131° 44' 13"E)

Statistics:
This is 1 of 241 approved meteorites from South Australia, Australia (plus 3 unapproved names) (plus 4 impact craters)
This is 1 of 719 approved meteorites from Australia (plus 11 unapproved names) (plus 27 impact craters)

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Revision
history:

This lists important revisions made to data for this record.

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