there are some really neat pictures on discover's website of close ups of different grains of sand and what beaches they are from and what they are composed of: minerals, remnants of sea life, even marble. it's pretty cool although i don't know if i'd want to know what new jersey beaches are made of. ick.
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Excellent pictures. It's pretty surprising, when you really look at the sand. People usually don't bother looking at the sand. But, it's like a book. Every single sandstone has its own history. Based on the shape, you can know, if they have been brought by the wind or the ocean. You can also find where they come from, based on chemical/mineral composition. It's really fascinating !!
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