Meteoritical Bulletin: Entry for Ramlat as Sahmah 251

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Ramlat as Sahmah 251

Basic information

Name: Ramlat as Sahmah 251
This is an OFFICIAL meteorite name.
Abbreviation: RaS 251
Observed fall: No
Year found: 2005
Country: Oman
Mass: 97.3 g

Classification
history:

Meteoritical Bulletin:	MB 91	(2007)	CV3
Recommended:			CV3 [explanation]

This is 1 of 470 approved meteorites (plus 2 unapproved names) classified as CV3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites

Comments:

Approved 1 Sep 2006

Writeup

Writeup from MB 91:

Ramlat as Sahmah 251 20°01.883′N, 56°27.354′E

Oman

Found 26 February 2005

Carbonaceous chondrite (CV3)

History: J. Bühler, M. Eggimann, E. Gnos, and R. Wieler recovered a single stone during a systematic search for meteorites.

Physical characteristics: Irregularly shaped stone of a olive-gray color, no fusion crust preserved, with a mass of 97.3 g.

Petrography and mineral compositions: (E. Gnos, UBE; B. Hofmann, NMBE; A. Al-Kathiri, UBE) The meteorite consists of up to 3.3 mm size olivine-pyroxene-dominated chondrules (32.3 vol%), fine-grained convoluted CAIs (0.25– 2.6 mm; 8.3 vol%), and dark matrix containing few mineral grains (59.3 vol%). Mean olivine (Fa_14.2; range Fa_3.5–34.5) and mean pyroxene (Fs_1.5Wo_1.8; range Fs_0.6–2.6En_94.5–98.5 Fs_0.9–3.3). Fe-sulfides are partially weathered.

Classification: Carbonaceous chondrite (CV3); S1.

Type specimen: The specimen is on deposit at NMBE.

Data from:
  MB91
  Table 5
  Line 218:

Date:	2005 Feb 26
Latitude:	20°01.883'N
Longitude:	56°27.354'E
Mass (g):	97.3
Pieces:	1
Class:	CV3
Shock stage:	S1
Fayalite (mol%):	14.2
Ferrosilite (mol%):	1.5
Classifier:	A. Al-Kathiri, E. Gnos, Institute of Geological Sciences, Bern; B. Hofmann, Natural History Museum Bern, Analyst E. Gnos, Bern
Type spec mass (g):	97.3
Type spec location:	Bern
Finder:	J. Bühler, M. Eggimann, E. Gnos, R. Wieler

Institutions
and collections

NMBE: Natural History Museum Bern Bernastrasse 15 CH-3005 Bern Switzerland, Switzerland; Website (institutional address; updated 2 Mar 2012)
Bern: University of Bern, University of Bern, Hochschulstrasse 4, CH-3012 Bern, Switzerland (institutional address)
UBE: University of Bern, University of Bern, Hochschulstrasse 4, CH-3012 Bern, Switzerland (institutional address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)

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Geography:

Oman

Coordinates:
Recommended::	(20° 1' 53"N, 56° 27' 21"E)

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:

This lists important revisions made to data for this record.

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