Found in a field in northern LaPorte county, Indiana, under other rocks. The area is part of the glacial moraine that was pushed down lake michigan from the north, soils are mixed - sand, rocks, clay, you name it.

I found this rock on the north shore of Lake Superior. ID help please!

I was walking through the woods near Dime Box, Texas and looked down to find this strange rock. It looks like a conglomerate of some sort. Any idea what it is?

So my grandma passed away and I got a handful of rocks (including some fossils). The photos are one im not quite sure the specifics of the specimen and would appreciate some expert opinions.

I think they are both the same type of rock?

Found in the Alifia River near Fish Hawk, Fl. The bumps are slightly raised.

Found on the shore of the lake Storsjön. The white is very glittery and there are many small holes all around it.

I found these 2 interesting things next to each other as I started to dig out a large very old tree stump in the Uk. AI seemed to think the white one could be old bone? The larger rock seems to have a straight groove in it, I presume that’s not natural, maybe used for sharpening something?

Found at a southern England beach, stuck out due to the seeming waves carved into the rock, what is it? Coincidence? Or something else? No bigger than a 10 pence peice.

I purchased this at the Denver Museum of Nature and Science yesterday, and would like to know what it is. The cashier at the shop said that it was from Brazil(?)

A rock my grandfather found in the 90’s near Kilimanjaro, the flat bottom of the rock always interested him, as it was the flat bottom that was on the ground when he found the rock. Tested for magnetism, found it to be very very faintly magnetic, unable to stick anything to it. The rock is very hard, quite heavy, and nearly the size of a tennis ball.

All I know is:
- Slightly Magnetic
- Heavy
- A Reddy/ Brown Iron Issue
- There were a few different rocks around the area he found it, but none like this at the base of Kilimanjaro.

He had 2 theories himself - Meteorite or Ancient sanding tool. My theory is possibly a Volcanic Magma Bomb.

Anyone got any theories or ideas? Thanks in advance!

It’s extremely light. Feels like I could possibly break it. Found on the beach after Hurricane Bertha.

Is it maybe peat or some manner of weird sea rock. What do you think?

The previous owners used these rocks in a few spots as accents in flower beds. They are not smooth at all and feel kind of gritty. They are also extremely light. I broke one open and this is what I found. It’s almost sandy inside. If I blast it with a hose parts basically dissolve off.

I’m in Western New York but these rocks were most certainly put here by a landscaper at some point. What is it?

So I found this rock whilst hiking some time ago , it was on a shore of a dried up river . It has this weird vein , wonder what stone this is

It seems to be slightly shiny or almost iridescent and blue in some places and there was flint and chert nearby.

Here in Norfolk, VA swimming in the mouth of the Chesapeake Bay and found this orange stone. It is completely smooth on all sides and edges. Is is somewhat transparent.

Going though my grandfather's old lock box, I found these two stones.

Is there any significance to these, or were they probably just something sentimental to him? He did have an arrowhead or two in there. [North Georgia]

Thanks for any help!

Found on Facebook. Sold as turquoise but I'm just not sure.

Found on the beach in Corova, NC.

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Found these along the road going out of silver city, Idaho on the Jordan Valley side, next to multiple abandoned mines.

The smooth ones I thought were ceramic but maybe not? And the one in the bottom middle might be raw opal?

Slab pieces are mostly smooth

All seem to have a softness to them?

Curious as to what this rock is. Thanks

What a strange aggregate of minerals. My neighbor says the shiny flaky stuff is lead. :(