This week’s #MicrometeoriteMonday: A stylish "micrometeorwrong" we found in sediments from the Atacama desert! Though it has the shape of a cosmic spherule, the sample displays a composition and texture atypical of a true micrometeorite. ☄️ @amgc-vub.bsky.social

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This week’s Micrometeorite Monday: Nearly 100 of the ~1,000 Antarctic cosmic spherules on this microscope slide, captured with one of our optical stereoscopes! These tiny extraterrestrial particles measure just 63–125 µm across ☄️ @amgc-vub.bsky.social

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This week’s Micrometeorite Monday: An iron (I-type) cosmic spherule from the Atacama Desert! This sample shows a characteristic magnetite-wüstite dendritic texture and a cavity where a FeNi-metal bead was once present, likely lost during atmospheric entry or weathering ☄️ @amgc-vub.bsky.social

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This week’s Micrometeorite Monday: A polished section of a V-type cosmic spherule from the Atacama Desert! This cool spherule consists almost entirely of silicate glass, plus several tiny FeNi-metal beads. ☄️ @amgc-vub.bsky.social

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This week’s #MicrometeoriteMonday: A polished I-type cosmic spherule from the late Devonian! Though corrosion has left a large cavity where an FeNi bead once was, and etched the spherule, remnants of its primary dendritic texture remain visible after nearly 400 million years! ☄️ @amgc-vub.bsky.social

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