NMM 2585 Harestua is a large, V-type (glass) micrometeorite that has advanced our understanding of the weathering of urban micrometeorites. When I discovered the rare, non-magnetic stone, we had only known severely weathered micrometeorites from Antarctic collections, but with this one, everything became clear.

The black stone was discovered in the rain gutter of the Solar Observatory at Harestua, Norway, located in a remote, dark area amid dense woodland. The gutter was packed with pine and spruce needles and cones, creating a slightly acidic environment that has affected the glass. On one side of the stone, pit erosion has penetrated deeply into the interior, similar to Antarctic micrometeorites, while the other half remains quite pristine. A missing link of significant scientific value.

 

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.