NMM 2097 Skedsmo (Grove Knudsen) is a giant, over 0.5 mm across.
NMM 2097 - Skedsmo (Grove Knudsen)
NMM 2097 Skedsmo (Grove Knudsen) is a giant, over 0.5 mm across, and a rare beauty. It is a bluish-grey cryptocrystalline (CC) droplet with stunning crystallisations. A shiny sulphide rim surrounds the large metal bead at the front, indicating a short terrestrial age, as sulphide dissolves quickly during weathering.
The most striking feature, however, is the unusual glassy tail, brown from traces of Fe3+, with a black cap at the end. What caused this? I am unsure, but I suspect it is related to NMM 2583, another CC with a long brown glass tail, formed as a twin during rapid spin in atmospheric entry. In any case, NMM 2097 is a unique micrometeorite and a prized addition to any collection.
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 photographic files.
This micrometeorite is a unique museum-quality
specimen and a jewel in any collection.
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