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| Ramlat as Sahmah 384 | |||||||||||||||||||||||||||||||||||
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| Basic information | Name: Ramlat as Sahmah 384 This is an OFFICIAL meteorite name. Abbreviation: RaS 384 Observed fall: No Year found: 2010 Country: Oman Mass:  5.03 kg | ||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 5 approved meteorites classified as Mesosiderite-C2. [show all] Search for other: Class C mesosiderites, Mesosiderites, and Metal-rich meteorites | ||||||||||||||||||||||||||||||||||
| Comments: | Approved 11 Jul 2012 | ||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 101:
Ramlat as Sahmah 384 (RaS 384) 20°0.294’N, 56°24.284’E Al Wusta, Oman Found: 2010 Jan 23 Classification: Mesosiderite (group C2) History: This meteorite was found in the RaS 202 mesosiderite strewnfield. Physical characteristics: Irregularly shaped brown rock without fusion crust, clasts visible at surface. Petrography: (A. Bretscher, Bern, B. Hofmann, NMBE, E. Gnos, MHNGE): The stone consists of a matrix of pyroxene (70%), plagioclase (7%), olivine (2%) and mostly oxidized metal (21 vol% oxide, originally 13 vol% metal) with abundant mineral and lithic clasts up to several cm in size. Mineral clasts comprise enstatite and olivine, lithic clasts are eucritic to diogenitic. Geochemistry: Compositions of matrix silicates are Fa31.4 (clasts: Fa28.1-29.6) and Fs26.7Wo2.0 (clasts: Fs30-57Wo2.0-3.6), plagioclase An91.1. Bulk analyses of clasts show Fe/Mn (wt) 30-42 (matrix 91), Ni bulk is 1.57%. Oxygen isotopes (I. A. Franchi and R. C. Greenwood, OU): Analyses of 17 samples of matrix and clasts yielded Δ17O = -0.244±0.010 ‰. Classification: Based on mineral compositions, matrix mode and oxygen isotopes this is a mesosiderite of type 2C. All aspects are virtually identical to paired RaS 202. 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) OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011) 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:
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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) | ||||||||||||||||||||||||||||||||||
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| Revision history: |
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