I am not sure if it is a pearl because of the color. It is also not perfectly round. Can you guys identify if it is really a pearl?

What is this? Either from the Great Lakes around Michigan or just random stones, not certain. Gray/blue tones.

I recently inherited my grandmother’s rock and crystal collection and I’m really curious about what this one is. Thank you in advance!

Took these photos in the sun. Malachite is my favorite, and i got it for a really good price, and it looks real enough that I won't be mad if it's fake. I'm just curious cause I can't really tell. It's a lot lighter than most of the stones I have too.

My uncle found this rock near to a river in the mountains.

My rock and crystal obsessed child found this unusual teardrop shaped rock on the beach in Margate UK. He (6 yo) thinks it’s obsidian.

The black area is very smooth and hard. The pale portion feels sandy and isn’t as hard.

What does everyone else think?

Randomly remembered that my late dad gave it to me, like 15 years ago, and just recently it came up to my mind that I dont actually know what it is specifically 😅😅

Would take it to a jewlery store for them to look at it, but dont wanna end up looking stupid if its some poorly made fake haha

So if you could pinch in and take a look, it would be really appreciated 💖

Emerald? Jade? Something else maybe

I recently inherited my grandmother’s rock collection and I’m hoping to learn a little bit about a couple of pieces. Thank thank you in advance!

Found in central Mississippi in my yard(for reference on the appearance before cleaning up it’s on the top of the bag of dirty ones in the 3rd image )

My mother found this rock in a creek bed in Greenville, IL. It's very smooth and was partially buried in the mud where you can see the discoloring. Its about 3 lbs by the feel of it but I don't know what kind of rock it actually is

Smokey quartz garnet and peridot?

These were all found by my grandpa on various local beaches in Humboldt County, Ca. He's also the one who tumbled them. I'm getting either green garnierite or moonstone as answers to the 1st. 2nd I'm assuming is some type of brecciated jasper. 4th one has a million different answers when I image search it. 5th one looks like polychrome jasper, or bloodstone, but obviously that's not geographically possible, so 🤷‍♀️ i have a ton of different jaspers, but I have like maybe 3 or 4 that look exactly like this one. 6th one (more purple than appears) gives me moonstone with an imagine search, until I turn it over and it's like a whole different stone apparently. I genuinely thought 7 was an agate, since it looks like a ton of other agates I have, but light doesn't pass through it at all. Image search answers for 8, 9, 10, 11, 12, and 13 were all "moonstone". Unsure of the others, but 12 and 13 (last 4 pics) look like jasp-agates to me. Oh yeah, these are all smooth btw (since they've been polished), so they all feel the same. Pls help a girl out lol

My camera and the light does the yellow no justice.

Found in Garfield county Colorado near East Rifle Creek area where two old uranium mines are. It was in a pull-out a couple miles south of the mines.

I've explored a 15 mile radius around the mines (never been able to explore the mines themselves because the owners do not allow it at all and there are cameras), and have never seen rocks like this in that area.

The yellow is powdery, but not easy to scratch off. From what I understand, carnotite can get in between the smallest spaces of sandstone and over take it so that it looks like sandstone? A couple areas of the yellow it appears like a crust, the rest is like it's sandstone. I believe the black bits are carboniferous trash.

I know a Geiger would tell me immediately, but until I get one, I was just seeing if anyone who has explored Colorado/Colorado Plateau uranium mines has seen anything like this before, or knows exactly what it is.

It feels fairly soft and has a little weight to it, I know it's not plastic but I really wanted some real turquoise bc i know it's all drying up. The lines running through are kind of a gold color and some of them cut into whatever material this is. Inside the drill holes appears to mostly be white or gray, and i could convince myself that some of them are a lighter blue.

Found in southern Ontario downriver of a waterfall inland near Lake Huron.

It’s from Brazil!

For context, these were all found by my grandpa at various local beaches in Humboldt County Ca. He tumbled and polished them. To me, they all appear pretty similar (especially the last 2), but only the 3rd one passes light through. Not sure if the first is just aventurine or what, but image search is extremely unhelpful, so any ideas?

She didn't pay much, I'm almost certain it's stone/gem (doesn't get warm easily, unless it's glass??).

It doesn't get damaged by metal, and it's slightly translucent under a light (but barely, it's very opaque).

Usually bracelets like this are made by dyed agate, but I'm not sure it is.

Any thoughts?

Kenosha, WI. This rock is in our front flower bed. After 25 years and this subreddit I can ask if any one can tell me what type it is? Size is about 1.5 bowling ball.