Marsa Alam 007 (MA 007)        25°12.79’N, 34°46.29’E

Al Bahr al Ahmar, Egypt

Find: 2013 Nov 27

Classification: H3.6-4

History: The meteorite was found by Mr. T. Kryachko on a small plateau near the wadi Marsa Ijli, Egypt, in November 2013.

Physical characteristics: The 90.5 g stone is a meteorite fragment with remnant fusion crust.

Petrography: A sample is composed of two lithologies with indefinite boundaries: 1) the host lithology consists of chondrules 60-1200 μm in size, with C, RP, BO, PO, BOP types (55 vol%, average diameter 630 μm, n=157) and a fine-grained cataclastic aggregate (45 vol%) of olivine, pyroxene and minor feldspatic glass; the aggregate contains abundant FeNi-hydroxide; accessories are troilite, chromite and rare FeNi metal (<0.02 vol%); 2) minor lithology (7.2 vol%) consists of chondrules, chondrule fragments, fragments of olivine, pyroxene and devitrified feldspatic glass, FeNi-metal (5-10 vol%), FeNi-hydroxides, troilite, and minor crystalline silicate matrix.

Geochemistry: (Borisovsky S. E., IGEM) Host lithology: olivine Fa_17.6±6.6 (N=42, PMD Fa=37.5); pyroxene Fs_9.4±5.4Wo_1.0±0.9 (N=13); metal (wt%): kamacite (Ni 4.67, Co 0.65, Si 0.05, Cr 0.12), taenite (Ni 44.6, Co 0.17, Si 0.05, Cr 0.09); minor lithology (clasts): olivine Fa_18.4±0.8 (N=8; PMD Fa=4.2), pyroxene Fs_16.3±0.2Wo_1.4±0.1 (N=10); metal (wt%): kamacite (Ni 6.71, Co 0.64, Si 0.01, Cr 0.04), taenite (Ni 31.2, Co 0.25, Si 0.01, Cr 0.03).

Classification: H3.6-H4 breccia. On the basis of the texture, TL sensitivity (0.34±0.02, A. I. Ivliev, N. S. Kujunko, Vernad) and PMD Fa, the host lithology is type 3.6 brecciated chondrite; on the basis of PMD Fa, the clasts are H4 chondrite.

Specimens: The type specimen of 18.2 g and thin polished section are on deposit at Vernad. Mr. T. V. Kryachko holds a main mass of the meteorite.