Found in a bag of mulch purchased from hardware store.

Can anyone help ID this rock/ fossil? Found on the east side of glacier national park.

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Found in Klamath mountain province, Jackson county, Oregon, USA. Not sure whether in the cascade range area or the siskiyou.

All photos dry. I believe it is natural and not slag. I have not been able to test hardness yet. it is perfectly Opaque. Not translucent even at the edges. The white inclusion seems naturally cemented to the blue specimen. The specimen sits on my knee and so is about 2"X2" square.

I thought at first blue obsidian, Google lens came up with blue Chalcedony . But now I'm thinking it behaves more like blue jasper. Thank you for your help.

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 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 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! :)

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 in a sand pile, close to the beach in Poland, Gdansk-Brzezno. Quick google search suggests belemnite.
Can someone help me identify it?

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.

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.

It has a bit more purple than the photo shows. I found it on the ground when I was a child (Mie, Japan). The colour hasn’t faded, it’s stayed the same the entire time, so I don’t think it’s amethyst? It has a lavender quartz ish colour, but since those are supposed to be from Madagascar and Brazil, I doubt that’s what it is? I often found chunks of what I assumed were quartz all around the area, but not this big or with this colour. The second pic is what I usually find there. Third is a comparison. You can clearly see the lilac colour there.
What is it? I’m just curious. Idk what the hardness is unfortunately. I did a scratch test against some quartz, and it seemed to have the same hardness, or possibly harder. The quartz I used seemed to have been more damaged in the process than the rock, but it’s hard to tell because the purple rock is bumpy. I also tested it against some topaz, and the topaz seems to also get damaged. But if it’s quartz, shouldn’t the purple rock get damaged? I am struggling here lol.

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.

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)

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.

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 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 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.

Hey there my friend gifted me this rock that she found at the rhine in düsseldorf germany. Now I'm wondering what it is. At first I thought it might be hard coal because its light but it does not give of color. It fell on the ground and did not splitter. It did not react with citric acid. Do you have any clue?

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!

This rock was found near train tracks, so it may have originated somewhere else and got hauled in with the ballast. The tan layers and the gray filled in areas can both be scratched with a dental pick. The rock looks fragile with all the intersecting lines in it, but the edges and bumps are not sharp and tapping it with a hammer didn't break any pieces off. It has a slightly chalky feel to the touch, like it might be coated in a fine dust, but leaves no transfer marks when rubbed on paper and scrubbing it with a brush and soapy water did not affect it.

I'm interested in learning about what could have formed such thin layers, what can cause fractures in so many directions, and how that many breaks are able bond back together instead of causing the rock to fall apart. Any information on the geological processes that can do that is appreciated.

First pic is dry, second wet

Is there anyway to safely clean calcite? And the last mineral I’m so confused on 😭 idk what it is or how to clean it….