NWA 12665 (20,850 g)
Northwest Africa 12665 (NWA 12665)
Classification: Ordinary chondrite (H5, melt breccia)
History: The meteorite was purchased from a Morrocan dealer at the mineral show in Hamburg, Germany.
Physical characteristics: Seven black fragments partly covered with fusion crust.
Petrography: The meteorite displays an almost black interior and consists of abundant and partly recrystallized melt rock regions with characteristic FeNi metal and sufide spherules. Unmelted chondritic regions are type H5 (plagioclase grain size about 30 μm) and contain few relict chondrules; no metal or sulfide veins are observed.
Place of purchase: Hamburg, Germany
Date: P 2018
Mass (g): 348
Class: H5-melt breccia
Shock stage: S3
Weathering grade: W1
Fayalite (mol%): 17.4±0.2 (n=12)
Ferrosilite (mol%): 15.6±0.4 (n=13)
Wollastonite (mol%): 1.7±0.1 (n=13)
Classifier: A. Greshake, MNB
Type spec mass (g): 22.6
Type spec location: MNB
Main mass: Hanno Strufe
Comments: Submitted by Ansgar Greshake