this post was submitted on 01 Jul 2026
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Interesting. Have you ever looked at beach sand specifically, under a microscope?
Yes, different types. Including glacial erosion, core samples and other sediments. Some are interesting, most are unremarkable to the layman. To academics, they are interesting for the story they tell (shat out of parrotfish for example)
That said, there are many types of beach sand, and within a single stretch of beach, different types as well, segregated by depth for example. They are very interesting for the story behind them. Sort of like how "everyone is unique".
The pictures that everyone is amazed at are relatively low magnification. If those grains were indeed so varied in their shape and colour, they would be easily visible to the naked eye.