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Ramlat as Sahmah 221
Basic information Name: Ramlat as Sahmah 221
     This is an OFFICIAL meteorite name.
Abbreviation: RaS 221
Observed fall: No
Year found: 2003
Country: Oman
Mass:help 48.3 g
Classification
  history:
Recommended:  CV3    [explanation]

This is 1 of 537 approved meteorites (plus 1 unapproved name) 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
Revised 4 Aug 2008: final writeup
Writeuphelp
Writeup from MB 93:

Ramlat as Sahmah 221                  0°31.912'N, 56°2.941'E

Oman

Find: 19 January 2003

Carbonaceous chondrite (CV3)

History: A fragmented stone was found by A. Al-Kathiri, M. Eggimann, B. Hofmann, and U. Krähenbühl during a search for meteorites.

Physical characteristics: The dark gray stone (3 fragments totaling 48.29 g) shows oriented fusion crust flow lines.

Petrography and Geochemistry: (E. Gnos, UBE; B. Hofmann, NMBE; A. Al-Kathiri, UBE) The composition of olivine ranges from Fa1.8-6.0, low-Ca pyroxene show compositions in the range of Fs2.5-2.8Wo1.3-2.6. CAIs are predominantly of the fluffy type. The matrix/chondrules + aggregates ratio is 0.51. Red chondrules dominate over blue chondrules in cathodoluminescence images indicating metamorphic grade 3.2. Oxidation of sulfides is minor.

Classification: Carbonaceous chondrite (CV3), minimal shock.

Specimens: The entire sample is on deposit at NMBE.


Writeup from MB 94:

the correct latitude for Ramlat as Sahmah 221 is 20°31.912?N.

Data from:
  MB93
  Table 8
  Line 126:
Origin or pseudonym:Oman, desert plain
Date:19-Jan-03
Latitude:20°31.912'N
Longitude:56°2.941'E
Mass (g):48.3
Pieces:3
Class:CV3
Type spec mass (g):48.3
Comments:latitude corrected in MB94
Institutions
   and collections
NMBE: Natural History Museum Bern Bernastrasse 15 CH-3005 Bern Switzerland, Switzerland; Website (institutional address; updated 2 Mar 2012)
UBE: University of Bern, University of Bern, Hochschulstrasse 4, CH-3012 Bern, Switzerland (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 93, MAPS 43, 571-632 (2008)
Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
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Geography:

Oman
Coordinates:
     Recommended::   (20° 31' 55"N, 56° 2' 56"E)

Statistics:
     This is 1 of 1751 approved meteorites from Al Wusta, Oman (plus 72 unapproved names)
     This is 1 of 3960 approved meteorites from Oman (plus 371 unapproved names)
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