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Ramlat as Sahmah 349 | |||||||||||||||||||||||||||||||||||||||
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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: 17 g | ||||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 31 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 | ||||||||||||||||||||||||||||||||||||||
Writeup |
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: |
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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) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
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Geography: |
Statistics: This is 1 of 1753 approved meteorites from Al Wusta, Oman (plus 81 unapproved names) This is 1 of 3998 approved meteorites from Oman (plus 441 unapproved names) | ||||||||||||||||||||||||||||||||||||||
Proximity search: | |||||||||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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