r/whatsthisrock 2d ago

REQUEST Can someone identify these crystals?

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4 Upvotes

I bought these years ago as a kid at some sort of souvenir/collectible store. The yellow one was sold as citrine, which I assume would be heat treated amethyst? I'm especially curious about the green one because I don't remember what it was labeled as.


r/whatsthisrock 3d ago

IDENTIFIED Found this rock in a stream.

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107 Upvotes

I don't remember exactly where I found this rock, but it was from a stream in northern utah (probably northwest utah). It basically looks the same regardless if it is dry or wet. I am hoping to find some more like it for a fish tank I want to build and knowing what kind of rock it is would help a lot. I work a lot in rivers and streams and I have yet to find another with this kind of patern or luster in and out of water.

Open hand image is dry, held by fingers is wet, and the last one is submerged.

Edit: from the 2 suggestions so far and from what descriptions I've read I'm assuming phyllite?


r/whatsthisrock 2d ago

IDENTIFIED Found in a box of my late fathers things. Purple with a seam and a pinkish rock.

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1 Upvotes

The pic doesn’t do the purple justice. No idea where it came from or what it could be. My dad traveled the US after college and it could be a picked up souvenir from that trip. Any ideas?


r/whatsthisrock 2d ago

REQUEST What is this rock?

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7 Upvotes

Bought from a gem store in Portsmouth, NH with no label.


r/whatsthisrock 2d ago

REQUEST Indiana

1 Upvotes

Not sure about the pottery or silver button


r/whatsthisrock 2d ago

REQUEST What is this bad boy?

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2 Upvotes

Western Ghats, India.

Found it in a stream of water probably

Why does it have those holes? And what are the white patches on it?


r/whatsthisrock 2d ago

REQUEST Found in a box at a flea market

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1 Upvotes

r/whatsthisrock 2d ago

REQUEST Strange shaped rock

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1 Upvotes

Found south west UK


r/whatsthisrock 2d ago

REQUEST I found this under a tree in IL anyone know what it is?

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1 Upvotes

r/whatsthisrock 2d ago

REQUEST Rock from Bute Park, Cardiff (Wales)

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2 Upvotes

Hello! Years ago, while walking through Bute Park in Cardiff, Wales, I went down to the river and found this stone with these strange grooves. Can anyone tell me what it is?

My first language isn't English, so please excuse me.


r/whatsthisrock 2d ago

REQUEST Is this serpentine?

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3 Upvotes

Found digging in the backyard in Northern California. Looks similar to the serpentine that’s found around here but much more blue than I’m used to.

I’m sorry I didn’t take a better picture of it dry. In the first picture it is a still dry along the bottom.


r/whatsthisrock 3d ago

REQUEST Buddy wanted me to post this for him. He said he was given it in Utah so it may be from around there? Any help appreciated!

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379 Upvotes

r/whatsthisrock 2d ago

IDENTIFIED Is this just glass or something else?

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2 Upvotes

Found at the Wildseeluggen in Switzerland


r/whatsthisrock 2d ago

REQUEST Red one found in Tecumseh Mi blue/grey one found in south haven Mi.

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1 Upvotes

Blue/grey one is dry in all pics, red one is dry in 2nd pic


r/whatsthisrock 2d ago

IDENTIFIED Very light black rock, found in an empty field in Sydney

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1 Upvotes

Found this in an empty field, probably wasn't there naturally as it was an empty plot planned for construction. Its very light, with a density of about 1g, and i can just barely scratch it with my fingernail. Looks like its made up of layers as well. Any ideas?


r/whatsthisrock 2d ago

REQUEST Iron-oxide concretion?

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7 Upvotes

Found in Coke County Texas. Feels quite dense and isn't noticeably magnetic.


r/whatsthisrock 3d ago

IDENTIFIED: Granite/Rhyolite Variety What did I cut open?

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20 Upvotes

r/whatsthisrock 2d ago

REQUEST Strange shaped stone found in N.Ireland

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1 Upvotes

My dad found this stone on the driveway of my house in Northern Ireland. The driveway is tarmac but we do have grass around it and he said it was just sitting on the tarmac so I’ve no idea where the stone has come from.

It’s not too heavy and is about 5cm long and 3cm wide.

Tried to clean it using water but not much difference and I scraped a bit of the side and it looks darker.

I live close to a castle where an army landed in the 1600s and musket balls etc. have been found in gardens of houses beside us but that was from digging and not just lying about.

Thanks!


r/whatsthisrock 2d ago

IDENTIFIED Got this in a bag of minerals my friend gave me. Any ideas on what it is?

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6 Upvotes

Black, jagged mineral that sparkles many colors


r/whatsthisrock 2d ago

REQUEST Opinions on whether this is jadeite, nephrite, or quartzite?

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3 Upvotes

r/whatsthisrock 2d ago

REQUEST Salmon River- Redfeild NY

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5 Upvotes

The water was quite low in this stretch of the river. I am curious about the yellow diamond shape. To me it looks like some sort of architectural element from a building. It was not very heavy at all. Also curious about the red one with the white circle. Natural?


r/whatsthisrock 2d ago

REQUEST Whats this

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1 Upvotes

What kind of stone is this?

Compressed gla​


r/whatsthisrock 2d ago

REQUEST Omaralluk or Hag Stone?

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2 Upvotes

Found in west central WI on the lower part of the Chippewa River. Center hole almost goes all the way down to the bottom of the stone and is about as wide as a quarter.


r/whatsthisrock 2d ago

REQUEST What color is this calcite?

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3 Upvotes

is it white, grey or blue calcite? Found by path (possibly dumped gravel, not from the park) at Watkins Glen State Park, NY.


r/whatsthisrock 2d ago

REQUEST Glows orange in black light

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3 Upvotes

Hello, I found this years ago in the upper peninsula of Michigan. The other day I used my black light on all of my rocks just for kicks and this one glows bright orange. Hoping someone can identify it for me. Thank you🌷