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Watson 003 | |||||||||||||||||||||||||||||||||||||
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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: 2.6 g | ||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 6493 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 | ||||||||||||||||||||||||||||||||||||
Writeup |
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: |
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Institutions and collections |
Monash: Building 28
School of Geosciences
Monash University
Victoria 3800
Australia, Australia (institutional address; updated 12 Dec 2012) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
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Geography: |
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: |
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