Ramlat as Sahmah 531

 

Ramlat as Sahmah 531

Found 2014

Carbonaceous Chondrite

CVox3.4

Specimen is a 2.54g endcut



COMBINED SHIPPING : 13$ TOTAL per package
Regardless the number of objects in it
TRACKED & SIGNED !!! 




 

Ramlat as Sahmah 531
Basic information Name: Ramlat as Sahmah 531
     This is an OFFICIAL meteorite name.
Abbreviation: RaS 531
Observed fall: No
Year found: 2014
Country: Oman
Mass: 753 g
Classification
  history:
Meteoritical Bulletin:   MB 108   (2020)   CV3.4
Recommended:       CVox3.4    
Writeup Writeup from MB 108:
Ramlat as Sahmah 531 (RaS 531)        20°10.568’N, 56°29.191’E
Al Wusta, Oman
Find: 2014 Nov
Classification: CV3.4
History: A fractured single stone was found as numerous specimens on an about 4 m2 area by an anonymous finder.
Petrography: Chondrite with well defined chondrules and CAIs set in an abundant fine grained iron-rich matrix (48 vol% by point counting, n=266). Chondrule average apparent diameter 690±360 μm (n=39). Opaques are mostly magnetite and sulfides. Based on the structural order of the polyaromatic matter assessed by Raman spectroscopy (L. Bonal, IPAG), this meteorite appears to be slightly less metamorphosed than Chainpur (type 3.4). The Raman spectroscopy parameters of interest are FWHM-D (cm-1)=158.0±23.9, ID/IG=1.02±0.05, N=6 (see Bonal et al. 2016, figure 6).
Geochemistry: Olivine Fa9.9±6.6, range Fa3.9-22.4, Fa PMD 52% (n=5). Cr2O3 in ferroan olivine 0.14±0.09 wt% (n=5). Orthopyroxene Fs2.2±0.2Wo2.4±1.7 (n=3). Defocused matrix analyses: FeO 28.1 wt%, total 100.0 wt%.
Classification: Carbonaceous chondrite (CV3.4). Oxidized subgroup. Subtype from Raman spectroscopy.
Specimens: Type specimen at CEREGE. Main mass with Kuntz.
Bibliography:
  • Bonal L., Quirico E., Flandinet L., and Montagnac G. (2016) Thermal history of type 3 chondrites from the Antarctic meteorite collection determined by Raman spectroscopy of their polyaromatic carbonaceous matter. Geochim. Cosmochim. Acta 189 312-337. (link)
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 2023-06-10)
Kuntz: Fabien Kuntz, France; Website (private address)
IPAG: Institut de Planétologie et d’Astrophysique de Grenoble 414, Rue de la Piscine Domaine Universitaire 38400 St-Martin d’Hères , France (institutional address; updated 2013-08-01)

 

 

 

About Us

The WWMeteorites team (for "WorldWide Meteorites" - Meteorites from around the world) was created in 2003 with the primary goal of traveling around globe in search of these fascinating celestial objects, and make them available for Science... and Collectors. Since 2017, the team has established its base camp on the island of Unst (Shetland, UK).

With four or five trips per year on average, the number of finds (in countries as diverse as Tunisia, Spain, Qatar, the Sultanate of Oman ...) has quickly become important. WWMeteorites therefore collaborates with several laboratories that analyze, and classify the new meteorites, mainly the Museum Fur Naturkunde (Berlin), the CEREGE (University of Aix-Marseille), and the Appalacjain State University (North Carolina). WWmeteorites (under the name of its founder, Fabien Kuntz.)  have already more than 500 meteorites listed in the Meteoritical Society Database.

In order to have a classification and an official referencement established, as well as to allow the long-term research on the meteorites, a part of 20% of each find by WWmeteorites is deposited in a lab
oratory


Images sell!
Get Supersized Images & Free Image Hosting


Attention Sellers - Get Templates
Image Hosting, Scheduling at Auctiva.