NMM 2171 - Nordkisa (Ahlsell)

NMM 2171 Nordkisa is a barred olivine (BO type) droplet with an impressive tail, curved backwards due to surface tension. A long, pointed glass tail is uncommon but has been reported in a single glass micrometeorite found at the South Pole. A tail may form through vesicle loss, pulling silicate melt outward, or because of rapid spin perpendicular to the direction of travel.

Another sign of spin during atmospheric entry is the golden nickel-iron metal bead at the front, approximately 30 degrees from the axis of symmetry. This fresh space rock is well known to collectors worldwide from its full-page spread (p. 136) in the Atlas of Micrometeorites. A unique opportunity to purchase.

 

PROVENANCE: The catalogue number refers to the NMM archive, the index of Jon Larsen’s Project Stardust collection, which is the reference collection for urban micrometeorites. The stone was found, curated, and selected by Larsen. It is in pristine condition, fresh from Space. Follow Jon Larsen’s Project Stardust and get exclusive micrometeorite content: https://www.patreon.com/c/ProjectStardust826

 

VERIFICATION: The MM has been confirmed extraterrestrial by visual identification and/or SEM/EDS analysis by Jon Larsen. The stone is mounted on a durable aluminium/glass/cardboard microslide and is delivered together with a signed Certificate of Authenticity and four photo files. This micrometeorite is a unique museum-quality specimen and a jewel in any collection.