header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 28 Nov 2020
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Watson 003
Basic information Name: Watson 003
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2008
Country: Australia
Mass:help 2.6 g
Classification
  history:
Meteoritical Bulletin:  MB 99  (2011)  H4
Recommended:  H4    [explanation]

This is 1 of 5993 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 18 Jan 2011
Writeuphelp
Writeup from MB 99:

Watson 003        30°29’S, 131°33’E

South Australia, Australia

Found: 26 Aug 2008

Classification: Ordinary chondrite (H4)

History: J. Salisbury found a single mass, 200 m from Watson 004 on the Nullarbor Plain.

Physical characteristics: This small meteorite weighs a total of 2.6 g and measures 1.7 cm x 1.5 cm x 0.6 cm. The exterior surface is a rusty brown color flecked with darker portions of fusion crust. Small chondrules are visible within the interior of this specimen.

Petrography: (Kim Lai N. Bell, Monash). Mineralogy consists of olivine, pyroxene, plagioclase, troilite, Fe-Ni metals and contains easily defined chondrules in a microcrystalline matrix. Chondrules lack glass and average 0.5 mm in diameter, with a range of 0.1 mm to 2 mm. Textural types include, RP BO, PP, POP and GOP. Olivine and pyroxene grains have weak undulose extinctions and irregular fracturing. Troilite (8%) and Fe-Ni metal (5%) have mostly been altered to oxides, with 77% of all sulfides and metals replaced.

Geochemistry: EMPA (wt%) Olivine: SiO2 = 37.82, TiO2 = 0.05, Al2O3 = 0.01, FeO = 20.28, MnO = 0.47, MgO = 41.41, CaO = 0.03, Na2O = 0.01, K2O = 0.02, (Fa21.57±2.72, n = 6). Low-Ca pyroxene: SiO2 = 55.31, TiO2 = 0.14, Al2O3 = 0.14, FeO = 12.24, MnO = 0.50, MgO = 30.79, CaO = 0.69, Na2O = 0.02, K2O = 0.03, (Fs18.16±3.11, n = 3). Kamacite: Ni = 6.27, Co = 0.35.

Classification: Ordinary Chondrite (H4) (S3) (W3).

Specimens: Sample and one thin section are retained at Monash.

Data from:
  MB99
  Table 0
  Line 0:
State/Prov/County:South Australia
Origin or pseudonym:Nullarbor
Date:26 Aug 2008
Latitude:30°29'S
Longitude:131°33'E
Mass (g):2.6
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):20.7
Ferrosilite (mol%):16.4
Classifier:K.-L.N. Bell
Type spec mass (g):2.6
Type spec location:Monash
Main mass:Monash
Finder:J. Salisbury
Comments:Submitted by K.-L.N. Bell, 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. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Australia
Coordinates:
     Recommended::   (30° 29'S, 131° 33'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 710 approved meteorites from Australia (plus 45 unapproved names) (plus 27 impact craters)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page