Northwest Africa 1882 (Mesosiderite-C)

State/District: Sahara
Date of fall/find: Found 2002, (purch.)
Total known weight: 4.438 kg
Number of pieces: unknown (many)
Type: Mesosiderite-C

Meteoritical Bulletin record: Click here

Many stones totaling 4438 g were found in 2003 by an anonymous finder in Western Sahara. Classification and mineralogy (A. Greshake, MNB): several stones are partially covered by fusion crust; contains up to several cm sized metal nodules; metal is mostly kamacite with some taenite; silicate portion is dominantly Mg-rich pyroxene, Fs26Wo3 (Fs23.4-28.7Wo2-4.7) and plagioclase, An92 (An90.1-94.4); accessories include silica, chromite, and phosphate; oxygen isotopic composition (R. Clayton and T. Mayeda, UChi): d18O = 3.36, d17O = 1.42 ‰.; low degree of shock; low to medium degree of weathering. Specimens: type specimen 22 g plus one polished thin section, MNB; main mass, S. Ralew, Germany.

ID#: 6150
Description: Slice
Size: 3.4 x 1.5 x 0.25 cm
Weight: 4.06 gr

US$ 90.00


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