NWA 6848 (4,450 g)
This is the only approved meteorite classified as R5-6
Northwest Africa 6848 (NWA 6848)
History: The meteorite was purchased in 2011 from a local meteorite dealer in Erfoud, Morocco.
Physical characteristics: Many small fragments partly to completely covered with fusion crust
Petrography: The meteorite is a breccia with up to 6 mm sized light coloured lithic fragments of petrological type 5 set into a fine-grained clastic groundmass of type 6. Ferroan olivine is the dominant mineral phase in clasts and matrix. Minor phases include albitic feldspar, low-Ca pyroxene, chromite, pentlandite and pyrrhotite. FeNi metal is virtually absent.
|Place of purchase:||Erfoud, Morocco|
|Fayalite (mol%):||38.1±0.2 (n=14)|
|Ferrosilite (mol%):||28.9±0.4 (n=12)|
|Wollastonite (mol%):||1.6±0.2 (n=12)|
|Classifier:||A. Greshake, MNB|
|Type spec mass (g):||21.8|
|Type spec location:||MNB|
|Main mass:||Hanno Strufe|
|Comments:||Submitted by Ansgar Greshake|