Here are some of the rocks I keep around just cuz I think they're neat:
Pegmatite (I'm a former rock hound, I love the larger crystals of pegmatite compared to granite)
This is a quartz boulder I use as a hose guide to keep from crushing my Herbarist rose:
This is a neat rock I found somewhere, to me it looks like it was a tool of some sort, and around here it may well be, this was the stomping grounds of the Wampanoag, they used to follow the Indian Head River that's down the road out to the North River, which empties into the Atlantic. Anyhoo.....
I just like this one, it's got a nice layer of green on the bottom of it:
And last but not least, this is a rock Greg found on a jobsite (he is constantly bringing home old cobblestones they dig up on jobsites, this was a special one). He brought it home to me knowing I'd love it as a gravestone for my Molly, my beloved basset hound. You can see the foxglove babies all around, they grow wild in this yard and decorate her area each year, it's a nice memorial: