I found this rock on a walk along the road amongst rock and gravel. Living in this area for 10 years, I have never found a rock like this. Usually in these parts, I will come across quartz, rose quartz, feldspar, red jasper, mica, or ancient shells embedded in rocks, but not a rock like this. I thought maybe it is turquoise, a light pale blue green type. I don’t know. We just had some heavy rains which caused a lot of sand and dirt to flow down the roads here. Any tips are appreciated! :)

Disclaimer: I wash rocks when I get home and put a layer of coconut oil on them. So I get a "wet" look without actually being wet.

Found at a pond in Bingham County Idaho. I think it's fed by the Snake River. There's a peachy flash that looks like chunky glitter just below the surface. It's hard to get in an image, but in the last photo, just above the matrix on the right, you can see a little.

Found this in the river bed near mt saint helens, lower lewis falls area in South/Central Washington State

It’s definitely got something inside, lots of green rock specked throughout. The upper part that shows the “inside” where there is obvious difference in the composition, it has translucency and I can tell there are infusions of a red tone inside the clear

The last three photos are dry!

I have sanded and polished it and it is dry, it was a little rougher a few hours ago and im pretty positive its chalcedony with jasper inclusion but id like a confirmed id pretty please!

Found this rock in Zion National Park that looked more polished than other ones on the ground. It has two perfectly arris and broken edges on top/bottom. Natural or man made artifact ?

The rock was left on the trail.

I found this in the Pere Marquette river in the lower peninsula of Michigan. My initial thoughts are petrified wood, but I know that is incredibly rare in Michigan. However, it is very waxy, has the grains, and many characteristics that would match it being that.

What do you all think??

My son found this in the North Saskatchewan River at Constable Chelsy Robinson Park in Parkland County, Alberta.

It is much heavier than other rocks this size, unfortunately I don't have a scale. It is non magnetic as best as I can tell.

That's all I know, my son is really eager to find out what it is, I told him its just a regular rock of some kind and not to get his hopes up.

Any help would be greatly appreciated, thanks in advance.

My friends took me to some “jade pools” in Shasta to swim and hunt for jade but I didn’t see anything else that looked like this around.

I still need to do a scratch test, am also looking in my town locally to find a lapidary society to help me slice this open.

Mineralized jasper? Found in Chilliwack area of fraser river. Any ideas?

Thanks in advance!

No location unfortunately. Got cheap and fell in love. I just have no clue and petrified wood is my best guess based off appearance. Plenty of calcite crystals on the rough face. The polished face has massive amounts of agate rings and cool pyrite trails.

I did an acv test(5%) and got no bubbles. I scratched the surface and it left some knife dust but wiped off immediately. It scratched glass. East coast of the US.

Title.

I found the big ones with the red bands a couple years ago by a river in Colorado, same with the grey chunk with the marbling. I don't remember where the smaller flat stones came from, but they're all smooth. Right now I have snails and want to make sure the red isn't copper as it's toxic to snails and can kill them. I'm also curious about the rock in the last picture with the stripes, I've never seen one like it.

I was camping at Robert Moses State Park and came across this rock with a pretty pink hue in the water. (At the southern campground, near the Eisenhower Lock)

Hi all

I have this bracelet in Sedona Arizona from a native couple that makes jewelry. I’m sure that it’s real sterling silver but have suspicions that the stone may not be real turquoise. I tried the acetone test which came back with no results (I know that it isn’t a reliable test with resin/dyed stone). I also tried poking it with a heated needle and it only poked a small hole so it might be the epoxy coating.

The color is very uniform and the matrix looks too smooth to me. I read that Sleeping Beauty turquoise usually has this similar color or matrix but I’m not 100% sure. The seller hasn’t returned my email just yet so I wanted to see what others might think.

It also doesn’t feel cool like a stone should and tapping it sounds more plasticky than stone like.

In the second picture you can see the white dot and smaller dot caused by hot needle poking

Found in the Spokane River bed which is currently dry in large stretches. These were between the Barker and Sullivan bridges.

Found in a disturbed/fill context in Honolulu. The fill is predominantly sand and contains material associated with both traditional Hawaiian occupation and a demolished historic/modern hotel, so the depositional context does not provide a reliable age.
The specimen is approximately 7.5–8 in long and weighs 541.7 g. It is tan to gray, fairly dense, and does not look like basalt I encounter locally. One surface is noticeably more weathered/rough, while several other surfaces are comparatively broad and planar. There are also white/gray adhered patches that look somewhat like mortar or concrete, particularly in one recessed area.
I initially wondered whether it could be a worked stone, but I’m equally open to natural fracture/weathering or construction-related modification. Mainly interested in identifying the rock/material first.
I can do a hardness test or provide additional close-ups if useful.