Bassikounou (H5)


Country: Mauritania
State/District: Hodh Ech Chargui, Bassikounou
Date of fall/find: Fell 2006, October 16 04:00 UTC
Total known weight: 29.56 kg
Number of pieces: many
Type: Ordinary chondrite (H5)
Shock stage: S2
Weathering stage: W0

Meteoritical Bulletin record: Click here


History: A fireball was witnessed in the area, but no records of the direction of movement were recorded. A single stone of 3165 g was found by A. Salem El Moichine, a local resident, on the same day at 13:00 hr local time, 11 km SE of Bassikounou. The sample for classification was provided to NMBE by M. Ould Mounir, Nouakchott, who obtained it from his cousin who recovered the meteorite. According to S. Buhl (Hamburg, Germany), more than 20 specimens were later recovered by locals and meteorite finders. These finds define a 8 km long strewnfield. The total recovered mass is 46.00 kg. Physical characteristics: The 3165 g specimen is largely covered by black fusion crust. The interior is light gray. On the surface of the fusion crust there is some adherent soil material, some of which is bright red. Shortly after recovery, the stone was cut into two pieces of 1200 and 1950 g. The larger piece has a rectangular shape and shows indications of flow-lines in the fusion crust. Petrography: (E. Gnos, MHNGE; B. Hofmann, NMBE, M. Eggimann, Bern/NMBE): Mean chondrule size 0.35 mm (n=53). Metal abundance is 8 vol%, troilite 6.6 vol%. Mean plagioclase grain size is ~20 mm. Troilite is polycrystalline, rich in silicate inclusions, and shows diffuse boundaries to metal. Metal is partly rich in silicate- and troilite inclusions. Rare metallic Cu (10 mm) occurs at kamacite-taenite boundaries and in troilite. Some shock veins and no weathering products were observed.



ID#: 7214
Description: Individual
Size: 5 x 3.5 x 2.5 cm
Weight: 70.8 gr

US$ 325.00 - On hold

 

1 more specimen of Bassikounou

Bassikounou

Class: H5
Weight: 29.9 gr

US$ 140.00 - On hold

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