Sand from Different Beaches in the World

https://magnifiedsand.com/

Comments

blakesterzMar 27, 2026, 4:26 PM
John McPhee had a great New Yorker article (which I think was also in the collection Irons in the Fire), where he wrote about how U.S. geologists used sand found in the Japanese "Fu-Go" bombs that made it to the NW US to figure out their launch sites from specific beaches near Tokyo.

It starts on the 9th page here

https://gwern.net/doc/technology/1996-mcphee.pdf

TechIsCoolMar 27, 2026, 5:43 PM
I think the rotating photos create a poor UX. The purpose of this layout it seems is to let users view the images carefully and study the details, but the slideshow effect makes that difficult.
jhaileMar 27, 2026, 6:44 PM
From a casual browsing perspective, I liked it. However, it'd be nice to have it pause when you hover over one - or something like that. To get the best of both worlds.
wafflemakerMar 27, 2026, 6:44 PM
This is just amazing to look at. Incredible, that there are shells as little as grains of sand.

These pictures would make great wallpapers.

technothrasherMar 27, 2026, 6:38 PM
I’ve had a sand collection for many years. I keep small vials on my shelf. From the Namib desert, to the slope of Mt Fuji, to Alaskan tundra. It’s a fun way to catalog places I’ve been.
jonathaneuniceMar 27, 2026, 5:16 PM
Love this!

I've heard that desert sand is fundamentally smoother than beach or river sand. Would love to see some examples of non-beach sand side-by-side with these glorious samples.

observationistMar 27, 2026, 5:20 PM
https://sandatlas.org/desert-sand/

Ask and ye shall receive.

_ache_Mar 27, 2026, 6:33 PM
I come from a island where its common to pain with sand. About one hundred beach, around two hundred colors, green is hard to make.

I learned that local sand composition is very affected by local geology.

jandreseMar 27, 2026, 6:45 PM
I mean it makes sense that the sand is made of the same stuff as your local rocks, that's where it came from. Sure it washes around a bit in the surf but it's not like it's floating around the world on the ocean currents, at least not in massive quantities. I'm sure there are bits stuck in driftwood or whatnot but the vast majority should sink to the bottom.
coldcity_againMar 27, 2026, 5:53 PM
This is lovely. I'd hoped to see The Coral Beach on the Isle of Skye[1] featured. In retrospect the bits are maybe a bit large[2] to be called "sand".

I'm sure it's very much frowned upon these days but somewhere I have a 35mm film canister full of the coral fragments.

[1] https://www.isleofskye.com/skye-guide/top-ten-skye-walks/cor... [2] https://www.isleofskye.com/skye-guide/top-ten-skye-walks/cor...

SegfaultSeagullMar 27, 2026, 6:12 PM
This is fantastic! Excellent share. Though I object vigorously to its exclusion of any beach in California. Scandalous!
max_Mar 27, 2026, 5:47 PM
I remember reading about a case where a murderer was tied to the crime scene just by analysing the quality of soil on his shoes.

It seemed far fetched then, but after seeing these pictures it really makes sense.

metaltyphoonMar 27, 2026, 6:03 PM
No sand from Brazil with such a huge coastline?
jolt42Mar 27, 2026, 6:25 PM
Only one from Mexico, definitely need more.
kalcodeMar 27, 2026, 5:28 PM
Very neat, never thought about how different beaches are. Like the sites theme, easy to read as well.
bronlundMar 27, 2026, 5:06 PM
This is quality content! A peek into the real wonders of the world and not the usual opinionated slop we are getting way too used to.