RAFSA 005

 

Rafsa 005

Found 2023

Achondrite

Angrite (plutonic)

Specimen is a 0.63g slice



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Rafsa 005
Basic information Name: Rafsa 005
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.

Observed fall: No
Year found: 2023
Country: Algeria
Mass: 2.03 kg
Classification
  history:
Meteoritical Bulletin:   MB 112   (2024)   Angrite
Recommended:       Angrite    
Writeup Writeup from MB 112:
Rafsa 005        28º39.1811’N, 8º12.571’W
Tindouf, Algeria
Find: 2023
Classification: Angrite
History: Many stones weighing a total of 2027 g were found by Hameti and Omar Harras and family members of Salek Mrabih in July of 2023 2.8 km NW of Rafsa 004, north of Tindouf, Algeria. Salek Mrabih purchased the samples from the finders.
Physical characteristics: Stone has an oriented shape a with a wind-ablated exterior. The cut face shows dark red silicates and small metal grains with a protogranular texture.
Petrography: Description and classification (A. Love, App) Sample shows heterogeneous, brecciated, protogranular texture dominated Ca-bearing olivine, subordinate Al-Ti diopside and anorthite showing well developed triple grain boundaries. Average grain size 475 µm. Sample contains Cr-bearing pleonaste spinels with plagioclase coronas similar to those described from NWA 2999 by Kuehner et al., 2006. Additional minerals are: kamacite and troilite.
Geochemistry: (A. Love, App) Olivine (Fa39.8±0.5, Fe/Mn=79.7±4.1, CaO=0.8±0.1wt%, n=14); diopside (Fs11.1±0.5Wo51.8±0.8, Al2O3=5.9_0.7wt%, TiO2=1.5±0.4wt%, Fe/Mn=101.5±21.6 n=14); anorthite (An99.4±0.2Or0.0±0.0, n=8); Cr-bearing pleonaste spinels (Mg#=48.7±0.8, Al2O3=56.1±0.9wt%, Cr2O3=6.7±0.8wt%, n=11).
Classification: achondrite (angrite U-S2 W3) Protogranular texture and mineral compositions indicate sample is a plutonic angrite. Sample may be paired with Rafsa 004.
Specimens: Salek Mrabih (Dominions Meteors) holds the main masses. A polished thin section and a cut individual weighing 22.40 g are on deposit at App.

 
Bibliography:
  • Kuehner S.M., Irving A.J., Bunch T.E., Wittke J.H., Hupé G.M., and Hupé A.C.(2006) Coronas and Symplectites in Plutonic Angrite NWA 2999 and Implications for Mercury as the Angrite Parent Body (abstract). Lunar Planet. Sci. Conf. 37, abstract #1344. (link)
Institutions
   and collections
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 2013-03-07)
LPI: Lunar and Planetary Institute, 3600 Bay Area Blvd., Houston, TX 77058 , United States; Website (institutional address; updated 2022-06-20)

 

 

 

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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.

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