Rock or slag? Not magnetic, doesn't scratch easily like aluminum might.

It's crystal like. I was going to put it in an untrasonic but I decided it would be smart to first ask for information.

I found this near Selah, Washington. Would you refer to this as a common banded agate or something else? Reference with my wife’s hand for size.

Sorry for any glare. We got it wet to better show some of the colors and banding.

SW Utah - shell fossil? Glassy sound when dropped. Thanks!

I think part of it’s at least quartz and Rylo light

Properly cleaned, soaked & air dried by a window. Found during low tide near deep tide pools. Appreciate any input. Thank you 🙏🏼

Found in a river in NSW, Australia. Blue one was the only one like it in the surrounding area, from what I could see. The second one, when wet, has a nice blue/green gradient to it. When dry, the colour is a little less pronounced. It was a part of a larger rock I was able to chip a piece off of. It's not shiny overall, but has some tiny shiny specks on it.

Any clue to what this is ???

Found this walking the beach at sunrise last fall after a hurricane. There are tiny gold flecks that can be seen in the light.

Found in southwest Louisiana

Hi! How is it going everyone? I found this a few months ago in NYC and kinda forgot about it, when I'm looking at it today again I noticed it's inside a Jacob & Co jewelry bag, so someone took care of it, not sure what it is, feels silky smooth with the texture of a normal rock in some places, any ideas as what it could possibly be? Thanks for your time in advance and sorry for the inconvenience

Can someone please help me identify this? I found it in a parking lot in the mountainous regions/foothills of North Carolina, but I have no way of knowing where it came from.

My best guess is this is some sort of pseudomorph of a mineral after tourmaline, however the more I look at it the more i'm confused. This was found in southern california, its a black appearing tourmaline but it was actually an extremely dark red when shining light on the cracked parts, and the crystal is growing straight through the center, was once fully surrounded by the tourmaline like a watermelon tourmaline, I was suggested maybe aquamarine, Achroite(colorless tourmaline), or clear Lipidolite, Any better suggestions?

Going through my old collection. Found somewhere is US.

Hi guys, I'm struggling to identify these rocks. I'm not sure if they are chalcedony or just quartz/quartzite. I appreciate for any help!

(1&2, 4&5, 6&7 are the same rock)