NWA 17853 ( 23,820 g )

Northwest Africa 17853 (NWA 17853)
(Northwest Africa)
Purchased: 2025 Jun
Classification: Ordinary chondrite (L3)
History: The meteorite was purchased from a Moroccan dealer on the mineral fair in Sainte-Marie-aux-Mines, France.
Physical characteristics: Dark brownish rock lacking fusion crust.
Petrography: The meteorite shows a chondritic texture with sharply defined, mostly flattened, mostly separated chondrules (mean diameter about 0.7 mm) in a fine-grained dark grayish matrix that contains sulfides and less abundant FeNi metal.
 
Place of purchase: Sainte-Marie-aux-Mines, France
Date: P 2025 Jun
Mass (g): 320
Pieces: 1
Class: L3
Shock stage: S2
Weathering grade: W1
Fayalite (mol%): 13.0±9.1 (0.8-29.6, n=25)
Ferrosilite (mol%): 10.7±8.1 (2.7-22.5, n=15)
Wollastonite (mol%): 0.5±0.2 (0.3-1.1, n=15)
Magnetic suscept.: 4.70
Classifier: A. Greshake, MNB
Type spec mass (g): 27.5
Type spec location: MNB
Main mass: Hanno Strufe
Comments: Submitted by Ansgar Greshake