Cee always has great photos for her photo challenges. I try to join in when I can find the time. This weeks challenge is ‘rocks’.

I have not edited these photos, they’re already pretty much black and white. I like them the way they are. I took all of them at the Houston Museum of Natural Science (at various times).

This is a sandstone concretion- formed when extremely hot water flowed through the fine quartz sand and cemented it together, about 20 million years ago). 

This is gypsum.

This is mesolite and fluoropophylite.

These are quartz crystals.

Aren’t they all just gorgeous?! So much of the natural world is so beautiful, from the macro to the micro. I love taking pictures to remind me of it all.

Check out Cee’s challenge and join in the fun. 🙂