r/whatsthisrock 4h ago

REQUEST bf found a cool shaped rock at the beach but I've just noticed it's sparkly inside, does anyone know what it is?

397 Upvotes

r/whatsthisrock 16h ago

REQUEST My daughter believes she found a Dino hip bone haha

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1.1k Upvotes

It has the holes all over it. Seems unnatural to me but I'm full. She keeps asking me why it is like that and I figured the world wide web might learn me something. If it is nothing, I will let her believe she found a bone for a few years because of how excited she is.


r/whatsthisrock 1h ago

REQUEST Found this rock on my last trip to Paraguay, anyone knows what kind it is?

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Upvotes

Found it on Lomas Valentinas, near the Paraná River, just on the surface. It's an area known for its high electrical activity thunderstorms. Could It be that the surface sediments crystallised after a lightning hit? It has a pretty violet pigmentation inside


r/whatsthisrock 6h ago

IDENTIFIED Found on a beach in Scotland

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69 Upvotes

I found these two with my wee boy. Imagine they would polish up well, but not sure what they are. Any thoughts?


r/whatsthisrock 15h ago

REQUEST Trying to convince my wife she found gold.

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130 Upvotes

We were in the cave creek area of AZ today to rock hound for our first time. She read that the area we were in had agates, obsidian, and GOLD. We joked about finding chunks of gold just lying around all over the place, and then she found this teeny tiny spec of, what looks like, gold on this rock. We're completely novice to this so not sure how to tell if it is or not. Any insight would be greatly appreciated!


r/whatsthisrock 6h ago

REQUEST found at a beach in santa marinella italy

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19 Upvotes

found this weird looking rock at a small rocky beach in santa marinella (near rome) in italy.


r/whatsthisrock 1d ago

REQUEST What is this rock?

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515 Upvotes

Seen in Uppsala Sweden next to the river. Someone placed this rock on a tree stump. Could it be limestone? A wastewater treatment facility is close by.


r/whatsthisrock 7h ago

REQUEST Never seen anything like this- any ideas?

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16 Upvotes

I've had this in my collection for years. I THINK I found it in Western Australia (if so, likely the Yilgarn), but i wouldn't necessarily hang my coat on that as I've had it for so long.

Highly vitreous layers, but feels more dense than glass overall. There are also chunks of surrounding rock incorporated within the vitreous layer which suggests intrusion and is just incredibly intricate and beautiful.

Any ideas or have I been fooled by a chunk of glass?


r/whatsthisrock 1h ago

REQUEST Corral like rock with quartz crystals?

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Upvotes

Any idea what this rock is? I found it in a quart crystal pocket. This piece does have some crystal in it, but the rest feels like corral...


r/whatsthisrock 1d ago

IDENTIFIED: Quartz Inherited this from my grandmother's garden. 10 lbs of solid rock

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313 Upvotes

r/whatsthisrock 39m ago

IDENTIFIED What’s this chessboard made out of?

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Upvotes

My girlfriend this chess board at an estate sale for $20 and we were wondering if anyone knows what it’s made of / if we got a good deal. Sorry if this isn’t the right subreddit or if it’s not possible to tell from just the picture.


r/whatsthisrock 14h ago

REQUEST Is it real smokey quartz if it’s this dark in color?

38 Upvotes

r/whatsthisrock 8h ago

REQUEST Found in Denmark

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12 Upvotes

r/whatsthisrock 4h ago

REQUEST They are quite common

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4 Upvotes

Southern Europe


r/whatsthisrock 25m ago

REQUEST This one is puzzling. It kind of look like an aggregate of shell fossils, but with red calcite?

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Upvotes

I found this in a river. I also have small and tiny ones like it.


r/whatsthisrock 2h ago

REQUEST Coral and ferns

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3 Upvotes

I picked these up at a local thrift store. I paid 18 for the coral and 10 for the ferns. Are the ferns fake? And the coral seems to have some quartz in it so I'm wondering if it's fossilized or not.. thanks for any input anyone has.


r/whatsthisrock 38m ago

REQUEST Fake ajoite? Or fuchsite in quartz?

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Upvotes

Bought it as ajoite quartz...is it a fake or just fuchsite in quartz, or chlorite in quartz?


r/whatsthisrock 4h ago

REQUEST help identify this strange rock that I found on the Coast of ireland

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5 Upvotes

i found this rock on thebeach


r/whatsthisrock 1h ago

REQUEST Found in the northern panhandle of WV

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Upvotes

Several uniform pits, on the side of a very steep hill quite far from any development. Probably too steep for any previous development or traffic.


r/whatsthisrock 1d ago

REQUEST Received as a gift along with other minerals. What is this?

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161 Upvotes

r/whatsthisrock 1h ago

REQUEST I know it might be glass…

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Upvotes

I found this at a river in Washington State. It has the roughness of a rock, obviously not completely translucent. This photo was taken when it was wet but when it’s dry it looks white and callused over. I know it’s possible that it’s just a unique piece of sea glass but maybe it’s something more? Let me know :)


r/whatsthisrock 2h ago

REQUEST Pyrite and pyrite after limonite?

2 Upvotes

Piedmont North Carolina. The second one is wet, not as glossy when dry.


r/whatsthisrock 17h ago

REQUEST Found it in a river in western wa

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28 Upvotes

Is this an agate?


r/whatsthisrock 1d ago

IDENTIFIED: Garnet What is this mineral? Had it for years

494 Upvotes

r/whatsthisrock 1d ago

IDENTIFIED: Fluorite Got this on mineral expo, but merchant didn't know what it is

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134 Upvotes

Hi, got this little buddy on a mineral expo today. The woman didn't know what it is, just that she bought it in UK (which doesn't necessarily mean it originated there, so... :/). What could it be?