Micrometeorite NMM 2684 is an exceptional beauty! The ~0.25 mm Space rock is a porphyritic olivine (PO) type with a unique orange/amber colour, due to traces of iron (Fe3+) in the large magnesium-rich olivine (forsterite) crystals.
NMM 2684 - Valhall
In the front, there is a shiny nickel-iron bead, surrounded by an area of iron-sulfide, which is an indicator of short terrestrial age. This stone is fresh from Space! The SEM image from the back side reveals a huge open vesicle, the result of escaping volatiles during formation. The opening around the vesicle is jagged from large olivine crystals in glass. This is an incredible specimen, museum-quality, and a jewel in 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 four photo files. This micrometeorite is a unique museum-quality specimen and a jewel in any collection.