| Price : 5600€ |
Douiyet el Ma 001 (DeM 001) 32°28’32.1”N, 02°29’41.6”E
Ghardaia, Algeria
Find: 2024 Nov
Classification: Ureilite
History: A single stone weighing 1038 g was found during a search in November 2024 by Abdel Malek in northern Algeria. A 956 g fragment of it was sold to the main mass holder by Mustapha Oulkouch, who initially purchased it one from the finder.
Physical characteristics: Dark grayish to black rock covered to about 70% by fresh fusion crust.
Petrography: The meteorite displays a protogranular texture of abundant up to 3 mm sized olivine and less abundant pigeonite grains both showing characteristic reduced rims associated with fine-grained weakly altered FeNi-metal. Olivine grains often meet in triple junctions. Pigeonite shows weak compositional zoning. Contains graphite and troilite.
Geochemistry: olivine cores: Fa17.6±0.5 (Fa17.0-18.5, n=10), contain 0.76±0.03 wt% Cr2O3 and 0.47±0.02 wt% CaO; reduced rims in olivine: Fa1.7-2.1, n=3; pyroxene: Fs13.3±0.6Wo6.5±1.6 (Fs11.8-13.9Wo2.6-10.0, n=15), contains 0.84±0.05 wt% Cr2O3 and 0.05±0.02 wt% Al2O3; reduced rims in pyroxene: Fs2.0-3.0Wo2.6-3.2
