Demsa, Nigeria H6 Chondrite Meteorites for Sale
Location: Adamawa, Nigeria, 9.4559°N, 12.1526°E
Fell: October 31, 2006
Type: Ordinary chondrite (H6)
Description: History : On October 31, 2006 between 10 and 11 am, local time, a sonic boom and change in sky color frightened local residents in Adamawa State. Nigerian authorities were alerted and the incident was reported on Nigerian television. Three meteorite individuals totaling 4 to 5 kg were subsequently recovered in and around the village of Demsa. The reports came to the attention of meteorite hunter, E. Egbe of Kaduna, who traveled to the location and was able to purchase one crusted 980 g individual stone. This stone had been struck with a hammer, and the reassembled mass (consisting of five pieces totaling 959 g) was purchased by Twelker in April and July 2007. Physical characteristics : A single fresh, gray stone (959 g) with glossy black fusion crust. Petrography : (A. Irving and S. Kuehner, UWS ) Fresh specimen containing sparse chondrules (mostly 0.7-1.4 mm, some up to 2.5 mm) in a coarse-grained matrix rich in holly-leaf shaped metal grains.The matrix plagioclase ranges in size from 100 to 300 μm, and accessory troilite and merrillite are present. Geochemistry : Olivine (Fa 19.1-19.4 , N = 3), orthopyroxene (Fs 16.5-17.2 Wo 1.7-1.3 , N = 4), clinopyroxene (Fs 5.4-5.5 Wo 46.4-46.0 , N = 2). Classification : Ordinary chondrite (H6).
Link to Meteoritical Bulletin Database.