this post was submitted on 06 Jan 2025
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Science Memes

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[–] Diplomjodler3 38 points 1 month ago (2 children)

There's no way these wouldn't be ground up after 500 million years.

[–] [email protected] 54 points 1 month ago (1 children)

Yup, OP text writer has no idea what they're talking about. The organisms that make this sand still exist today and are still making this sand

https://www.nationalgeographic.com/science/article/okinawa-japan-star-sand

[–] [email protected] 1 points 3 weeks ago

Perhaps they meant that these organisms are themselves ancient?

[–] [email protected] 13 points 1 month ago

Probably like the sand that looks loke amazing snowflakes. The image for that one used selected granules from thousands (billions). Most sand is just ugly, and micro plastics.