Micrometeorite NMM 2861 is a glass of vitreous (V) type particle measuring approximately 190µm. The most exciting feature of this beautiful micrometeorite is its three metal beads!
Each one has triggered conical crystallization in the olive green chondritic glass. The distribution of the three metal beads points towards heavy spin during atmospheric entry.
The stone was found on the roof of an industrial building at Sarpsborg, Østfold, Norway by yours truly and was photographed by Jan Braly Kihle and me.