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Ramlat as Sahmah 349
Basic information Name: Ramlat as Sahmah 349
     This is an OFFICIAL meteorite name.
Abbreviation: RaS 349
Observed fall: No
Year found: 2010
Country: Oman
Mass:help 17 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  H7
Recommended:  H7    [explanation]

This is 1 of 21 approved meteorites classified as H7.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 24 Nov 2012
Writeuphelp
Writeup from MB 101:

Ramlat as Sahmah 349 (RaS 349)        20°23.164’N, 55°47.419’E

Al Wusta, Oman

Found: 2010 Jan 13

Classification: Ordinary chondrite (H7)

History: A single stone was found during a search for meteorites by U. Eggenberger, E. Gnos, N. Greber, and F. Zurfluh.

Physical characteristics: Dark brown, rounded single stone (2.5 × 2.0 × 1.5 cm) without fusion crust, wind-ablated, mass of 16.97 g.

Petrography: (B. Hofmann, NMBE; F. Zurfluh, Bern; E. Gnos, MHNGE): Equilibrated texture consisting of large silicate crystals (olivine and pyroxenes up to 2 mm, feldspar up to 0.5 mm) with common triple junctions, no recognizable chondrules. Chromite up to 1 mm is common. Metal and troilite are fully oxidized (abundant alteration oxides), only some small inclusions in silicates are preserved.

Geochemistry: Silicates are homogeneous and show the following compositions: olivine Fa17.7, orthopyroxene Fs16.2Wo3.7, calcic pyroxene Fs51.1Wo7.9.

Classification: Based on texture, mineralogy and mineral compositions this is a H7 chondrite. The meteorite is unshocked (S1) and shows strong terrestrial alteration with only traces of metal and troilite preserved (W4).

Specimens: All at NMBE.

Data from:
  MB101
  Table 0
  Line 0:
State/Prov/County:Al Wusta
Origin or pseudonym:desert plain
Date:2010 Jan 13
Latitude:20°23.164'N
Longitude:55°47.419'E
Mass (g):16.97
Pieces:1
Class:H7
Shock stage:S1
Weathering grade:W4
Fayalite (mol%):17.7
Ferrosilite (mol%):16.2
Wollastonite (mol%):3.7
Classifier:F. Zurfluh, Bern; B. Hofmann, NMBE; and E. Gnos, MHNGE
Type spec mass (g):16.97
Type spec location:NMBE
Main mass:NMBE
Finder:U. Eggenberger, E. Gnos, N. Greber, F. Zurfluh
Comments:Submitted by Beda Hofmann
Institutions
   and collections
NMBE: Natural History Museum Bern Bernastrasse 15 CH-3005 Bern Switzerland, Switzerland; Website (institutional address; updated 2 Mar 2012)
MHNGE: Muséum d’histoire naturelle, Route de Malagnou 1, CH-1211 Genève 6 , Switzerland (institutional address; updated 27 Oct 2011)
Bern: University of Bern, University of Bern, Hochschulstrasse 4, CH-3012 Bern, Switzerland (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
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Geography:

Oman
Coordinates:
     Recommended::   (20° 23' 10"N, 55° 47' 25"E)

Statistics:
     This is 1 of 1747 approved meteorites from Al Wusta, Oman (plus 72 unapproved names)
     This is 1 of 3944 approved meteorites from Oman (plus 371 unapproved names)
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