Sharing the link below from Steph of Partial Ellipsis of the Sun: A Blog for Scientists who like Words and Writers who like Science.
There are stunning and fascinating highly-magnified photos of the huge variety among grains of sand.
They are all beautiful – except the frack sand, which is dangerous to breathe and can cause lung disease, including silicosis. Those of you who know me know I couldn’t find anything about fracking beautiful.
Here is the link: http://wordwomanpartialellipsisofthesun.blogspot.com/2015/12/the-universe-truly-is-in-grain-of-sand.html