Marsa Alam 006 (MA 006)        25°12.90’N, 34°46.34’E

Al Bahr al Ahmar, Egypt

Find: 2013 Nov 25

Classification: Ordinary chondrite (H3-5)

History: The meteorite was found 2 m from Marsa Alam 002 by Mr. T. Kryachko on a small plateau near the wadi Marsa Ijli, Egypt, in November 2013.

Physical characteristics: The stone is a meteorite fragment with the relics of fusion crust; a total mass of the sample is 97 g.

Petrography: A host lithology of the meteorite consists of C, RP, BO, PO, and BOP chondrules, 100-1000 μm in size, with average diameter 440 μm (n=95, 60 vol%), fine-grained cataclastic aggregate of olivine, pyroxene and minor partly devitrified feldspatic glass (40 vol%), accessory troilite (1.8 vol%), FeNi metal (0.6 vol%), and chromite. FeNi hydroxides are abundant in the cataclastic aggregate. Clasts 1.5-3 mm in size (29 vol%) have distinct boundaries with the host and are composed of chondrule fragments (~80 vol%), fragments of olivine, pyroxene, minor feldspar, and recrystallized silicate matrix. Other phases are FeNi-hydroxides (10 vol%) and troilite (1 vol%); FeNi metal is accessory. The glass in chondrules is devitrified.

Geochemistry: (N. N. Kononkova, Vernad) host lithology: Fa_17.5±3.7 (N=45; PMD Fa=21.3); Fs_15.4±3.9Wo_1.3±1.0 (N=37), metal (wt%): Ni=6.43; Co=0.59; troilite Ni=0.02, Cr=0.03, Co=0.05; clasts: Fa_18.6±0.2 (N=10; PMD Fa=1.0); Fs_16.2±1.3Wo_1.2±1.2 (N=10); metal (wt%): Ni=7.24; Co=0.64; troilite Ni=0.15, Cr=0.10, Co=0.09.

Classification: H3-5 breccia. On the basis of PMD Fa and texture, the host lithology is approximately sub-type H3.7; the clasts are type H5.

Specimens: The type specimen of 23.7 g and thin polished section are on deposit at Vernad. Mr. T. V. Kryachko holds a main mass of the meteorite.