White sand is calcium carbonate that has been eroded down to sand size particles. One way that happens is by parrot fish grinding it up, but weathering surely created the vast majority of it.
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_lilith@lemmy.world 3 weeks ago
This isn’t any more true than it was 15 years ago when I first saw it on imgur. Those are close ups of small shells found in some tropical sand that have been separated from regular sand. Sand isn’t fucking magic its small rocks.
Also white sand is fish poop.
FishFace@piefed.social 3 weeks ago
CatsGoMOW@lemmy.world 3 weeks ago
FishFace@piefed.social 3 weeks ago
How does that compare to the quantity of sand already in existence? There was a long period of time (millions and millions of years) when there were no parrotfish, but billions of tons of calcium carbonate being eroded by the weather.
Abyssian@lemmy.world 3 weeks ago
What a stupid thing to bicker about. Good work, people on the internet. o_O
CatsGoMOW@lemmy.world 3 weeks ago
Could very well have been other animals over time.
can@sh.itjust.works 3 weeks ago
How much of all the planet’s sand is on beaches frequenteeed by humans? Perhaps the interesting samples are over-represented but they’re still neat.
mnemonicmonkeys@sh.itjust.works 3 weeks ago
How does that compare to the quantity of sand already in existence?
Seeing as there’s now a shortage of water-eroded sand, probably a good portion of it
crimson_iris@piefed.social 3 weeks ago
And how much of it is at least 50% microplastics now.
SCmSTR@lemmy.blahaj.zone 3 weeks ago
Hajabawhat now? How is white sand fish poop? Isn’t it just sand? Or do you mean like the white particles in mixed sand are fish poop?
executivechimp@discuss.tchncs.de 3 weeks ago
White sand is fish poop. animalsaroundtheglobe.com/this-fish-eats-coral-an…
lividweasel@lemmy.world 3 weeks ago
“This fish produces white sand” is pretty far away from “all white sand is produced by fish”.
sharkfucker420@lemmy.ml 3 weeks ago
Shhhhh, let them believe. It is okay
TrickDacy@lemmy.world 3 weeks ago
And yet if you look at magnifiedsand.com it is insanely cool and not too different from the images in this post. I don’t think that entire website is fraudulent. Glad I didn’t see your comment first because it would’ve turned me off of even looking into this further. When I did look into it further, I was thrilled.
icelimit@lemmy.ml 3 weeks ago
That is very heavily curated to make every picture interesting. Take a scoop from your nearest beach and it doesn’t look anywhere near as dramatic. Sauce: I run a lab with fancy microscopes.
Your skin is infinitely more populated. Especially under your fingernails.
TrickDacy@lemmy.world 3 weeks ago
Interesting. Have you ever looked at beach sand specifically, under a microscope?
icelimit@lemmy.ml 3 weeks ago
Yes, different types. Including glacial erosion 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)
can@sh.itjust.works 3 weeks ago
Or Big Magnifier would have you believe.