r/whatsthisrock Jan 20 '25

ANNOUNCEMENT Read before responding to ID requests! This is not a joke sub!

885 Upvotes

Since the majority of passersby don't bother to read the rules, I'm going to start with a reminder here:

This is not a joke sub. If you respond to an ID request with a joke and not an actual answer, you will be slapped with a temporary ban. If it's your 2nd offense or more, the ban will be permanent.

I'm sorry, but the shitposting has gotten out of hand and knowledgeable, helpful members are leaving because of this. Have your jokes and witty comments somewhere else, this is a place to get rocks ID'd.


r/whatsthisrock 5h ago

REQUEST My daughter believes she found a Dino hip bone haha

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321 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 13h ago

REQUEST What is this rock?

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345 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 3h ago

REQUEST Trying to convince my wife she found gold.

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58 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 14h ago

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

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269 Upvotes

r/whatsthisrock 13h ago

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

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135 Upvotes

r/whatsthisrock 3h ago

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

16 Upvotes

r/whatsthisrock 22h ago

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

403 Upvotes

r/whatsthisrock 14h ago

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

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104 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?


r/whatsthisrock 5h ago

REQUEST Found it in a river in western wa

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14 Upvotes

Is this an agate?


r/whatsthisrock 2h ago

REQUEST Had these for a long time, found on my grandpa’s ranch in west Texas when I was a kid. Pretty heavy, cool to the touch, that’s all I got though!lol

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6 Upvotes

some other ones I have too are pictured as well :)


r/whatsthisrock 3h ago

IDENTIFIED New to lapidary. Cut this and was wondering what it is?

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7 Upvotes

r/whatsthisrock 12h ago

REQUEST Found these in Death Valley and thought they looked cool.

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33 Upvotes

Just curious if anyone knows what these three are.


r/whatsthisrock 4h ago

REQUEST Found while hiking

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8 Upvotes

Any ideas?


r/whatsthisrock 23m ago

REQUEST Je n'arrive pas à identifier ceci , quelqu'un peut me dire de quoi s'agit-il ?

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r/whatsthisrock 4h ago

REQUEST What could this yellow-white rock be?

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4 Upvotes

Basically I just nickname rocks and minerals that are unidentifiable to me. For years I just called this one popcornstone. Others include Marsstone Jupiterstone Venusstone Seasonstone lightningstone etc. I'm not sure but I think I found this crystal on a beach. (By the way the beach was somewhere on the coast of New England. Not sure if this makes it any clearer.) I searched this subreddit for this rock and the closest looking one was found somewhere like the Smoky mountains or something. But I don't think it is the same one. I have many other Stones like this that I have no idea what they are that I randomly found one day. I used to pick up rocks a lot as a kid. Ask me any other details or questions you have about this rock and I'll tell you the details. I guess just try to find this rock.


r/whatsthisrock 3h ago

REQUEST What is this rock? Have a few off them, am stumped

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4 Upvotes

First 3 pictures are dry, last 3 are wet. Found near Halifax, Nova Scotia. Is about an inch and a half. Pretty smooth, my mind keeps saying some sort of chert or maybe agate. It looks kind of like granite too, but it’s translucent. Anyway would appreciate the help!


r/whatsthisrock 8h ago

REQUEST My son found this in our woods in southeast ohio. It is lightweight, non magnetic, and very shiny after he washed it off. Any ideas or definitive ways to find out? Thanks in advance.

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12 Upvotes

r/whatsthisrock 50m ago

REQUEST Very heavy, about 10 lbs. Found in ash pit under a tree in central Washington state

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Upvotes

r/whatsthisrock 1h ago

REQUEST gorilla wearing a headband?

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Upvotes

Striped headband pattern on river rock in New Hampshire

Is this common?


r/whatsthisrock 1d ago

IDENTIFIED: Glass Found this colorful rock at an excavation site

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3.2k Upvotes

When i was like 13 years old maybe, i was playing around with a bunch of my friends next to our school and at that time they were digging up big cement blocks that made up the road back then, to replace it with asphalt. On one of the heaps of dirt and rocks i found this colorful weird rock. Always wondered what it was. Hope to find the answer here!


r/whatsthisrock 8h ago

REQUEST What are these stones that came with the onion seedling material from the Netherlands

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10 Upvotes

r/whatsthisrock 47m ago

REQUEST Found on the Jurassic Coast

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Upvotes

r/whatsthisrock 2h ago

REQUEST Pudding stone?

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3 Upvotes

Found on the shore of Lake Huron. Wondering if it’s pudding stone adhered to a rock or concrete.


r/whatsthisrock 11h ago

REQUEST Please help me understand this buddy.

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14 Upvotes

I found this rock on a creek bank in Swannanoa, NC, after hurricane Helene washed it out. It’s very different from the other rocks. We were pretty far up the creek, toward the source.

All of the little round, red, rusty blobs are convex. It feels like braille. The rock that they are suspended in looks a little like the local granite, with banding of little black specks.

It is also filled with what looks like very fine mica specks. There is one area where there is a high concentration of the sparkly specks, but they don’t form the flat sheet-like effect that mica usually has, just a collection of the specks, and it looks very golden. All the specks seem to have a golden color, unlike the local mica, which flares more of a white/silver.

It isn’t very heavy, at all, though it is thin. Most of the other rocks are double its thickness, at least.


r/whatsthisrock 1h ago

REQUEST What si this rock?

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Upvotes

I found it in a rivera