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Marsa Alam 007
Basic information Name: Marsa Alam 007
     This is an OFFICIAL meteorite name.
Abbreviation: MA 007
Observed fall: No
Year found: 2013
Country: Egypt
Mass:help 90.5 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  H3.6-4
Recommended:  H3.6-4    [explanation]

This is the only approved meteorite classified as H3.6-4.
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 23 Aug 2016
Writeuphelp
Writeup from MB 105:

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 Fa17.6±6.6 (N=42, PMD Fa=37.5); pyroxene Fs9.4±5.4Wo1.0±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 Fa18.4±0.8 (N=8; PMD Fa=4.2), pyroxene Fs16.3±0.2Wo1.4±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.

Data from:
  MB105
  Table 0
  Line 0:
State/Prov/County:Al Bahr al Ahmar
Date:2013 Nov 27
Latitude:25°12.79'N
Longitude:34°46.29'E
Mass (g):90.5
Pieces:1
Class:H3.6-4
Shock stage:S1
Weathering grade:W4
Fayalite (mol%):17.6±6.6 (N=42, host)
Ferrosilite (mol%):9.4±5.4 (N=13, host)
Wollastonite (mol%):1.0±0.9 (N=13, host)
Classifier:C. A. Lorenz, Vernad
Type spec mass (g):18.19
Type spec location:Vernad
Main mass:Mr. T. V. Kryachko, bredfield@mail.ru
Finder:Mr. T. V. Kryachko
Comments:Field Name: TM-C; submitted by C. A. Lorenz
Institutions
   and collections
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
IGEM: Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences, Staromonetny Per., 35, Moscow, 119017 , Russia (institutional address; updated 16 Dec 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Timur Kryachko   
Geography:

Egypt
Coordinates:
     Recommended::   (25° 12' 47"N, 34° 46' 17"E)

Statistics:
     This is 1 of 30 approved meteorites from Al Bahr al Ahmar, Egypt
     This is 1 of 78 approved meteorites from Egypt (plus 11 unapproved names) (plus 1 impact crater)
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