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| Watson 006 | |||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Watson 006 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2009 Country: Australia Mass:  53 g | ||||||||||||||||||||||||||||||||||||
| Classification history: |
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 26 Oct 2010 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 99:
Watson 006 30°30’S, 131°42’E South Australia, Australia Found: 9 May 2009 Classification: Ordinary chondrite (L5) History: Two interlocking pieces were found by A. Tomkins. Physical characteristics: This meteorite weighs 53.0 g. A matte black fusion crust present. Small, pale colored chondrules visible. The fresh interior is a pale grayish green with metal grains, veins and chondrules evident. Petrography: (Kim Lai N. Bell, Monash). Readily discernible chondrules lie within a recrystallized matrix and include RP, POP, PP and BO. Sizes range from 0.25 to 1.5 mm, with an average diameter of 0.5 mm. Mineralogy consists of olivine, pyroxene, plagioclase, Fe-Ni metal (kamacite, taenite), and sulfides plus trace amounts of a carbon-based mineral. Olivine and pyroxene have undulose extinctions and planar fracturing in the larger grains. Plagioclase grains occur as small grains, <50 μm in size and have undulose extinctions. Metals (5%) and sulfides (5%) occur as irregularly shaped grains within the matrix, chondrules, melt veins and as small blebs in the 2-3 mm wide ablation surface. One semi-continuous metal vein cuts across the meteorite and is up to 1.5 mm wide, containing 2 large, mm-sized spherical blebs of troilite plus several micrometer sized grains of a hard carbon polymorph. Up to ~3% of the metals and sulfides are replaced by oxides. Geochemistry: EMPA (wt%) Olivine: SiO2 = 37.24, TiO2 = 0.05, Al2O3 = 0.01, FeO = 22.62, MnO = 0.50, MgO = 39.44, CaO = 0.02, Na2O = 0.02, K2O = 0.00, (Fa = 24.34, σ = 0.19, n = 8). Low-Ca pyroxene: SiO2 = 53.78, TiO2 = 0.11, Al2O3 = 0.13, FeO = 14.11, MnO = 0.52, MgO = 29.53, CaO = 0.61, Na2O = 0.03, K2O = 0.01, (Fs = 21.14, σ = 0.91, n = 8). Kamacite: Ni = 6.68, Co= 0.81. Classification: Ordinary chondrite (L5, S4, W1). Specimens: Both pieces and two thin sections held by A. Tomkins 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:
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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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