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.
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