Here is a photo that Jan and I took just yesterday of new micrometeorite NMM 3859.
Measuring approximately 0.35 mm, I strongly suspect that this spooky spherule is a scoriaceous (SC-type) micrometeorite, though this is a presumption. NMM 3859 has a partial magnetite rim and characteristic pipe holes from degassing. The stone has no real aerodynamic properties; only surface tension has pulled it back into a rounded form.
A beautiful variety of a cosmic dust particle, barely melted, and presumably a short terrestrial age judged by the intact sulfides around the degassing holes.
But is it really beautiful, or a cosmic version of Hannibal Lecter?
Even though I have collected and photographed thousands of micrometeorites, I often find myself feeling surprised and delighted at the sight of a new MM. They are truly spectacular and, like a snowflake, each one is unique.
I hope you’ve enjoyed seeing this spooky cosmic spherule.
Connect with me on Facebook, Instagram, and Twitter if you have any questions about these wonderful treasures from space. If you’re new to micrometeorites, click here to explore the basic facts for free. or shop my books to learn how to find stardust of your own!
Yours truly,
Jon Larsen