r/whatsthisrock

Image 1 — Found by my son in Austin TX
Image 2 — Found by my son in Austin TX
Image 3 — Found by my son in Austin TX
Image 4 — Found by my son in Austin TX
Image 5 — Found by my son in Austin TX
🔥 Hot ▲ 879 r/whatsthisrock

Found by my son in Austin TX

My son found this in our backyard in Austin. Never seen anything like it and he is very interested to know what it is. The brown stuff in the last two pictures are sparkly but none of the other parts are. What can you tell us?

u/Ol_Dirt — 7 hours ago
🔥 Hot ▲ 1.9k r/whatsthisrock

Found in the Rocky Mountains when I was little - what is it?

Hi, everyone!

I found this rock when I was around 6 years old near Pagosa Springs, Colorado. I’ve kept it ever since and have never known what it is, hoping to get some insight! If there are any questions I can answer that may help, please let me know. Thank you! :)

u/MoosinAround7886 — 21 hours ago
🔥 Hot ▲ 53 r/whatsthisrock

Some type of petrified wood, I think

These are most likely from the show low/ snowflake area of Arizona.(not 100 percent certain) These 2 pieces look very similar so I assumed they are the same. One of the rocks is completely smooth as seen in the picture, seems too smooth to be natural.

Can someone please help me out with the specifics?

u/nickthedeer — 8 hours ago
🔥 Hot ▲ 57 r/whatsthisrock

Boss bought me this from her trip to South Africa

Hi there!

My boss just came back from a trip to Africa and she visited Cape Town where she bought this for me. Any idea what it could be? It did not scratch with my finger nail or my house key.

u/Good_Sock3084 — 9 hours ago

Strange beautiful rock, found in Karoo, South Africa

My partner came upon this rock and we would love to know what it is!

u/Iamthebog — 8 hours ago

What is embedded in this boulder?

whatever it is, the shards are in all different directions, they are shiny, smooth, and appear slightly translucent. they are not brittle or flakey.

the host(?) rock is about 3 feet across

i tried to clean the dirt out of the crevice but there is a lot of it. the black shards do continue into that space tho.

stone located on the southern border of Vermont

u/Pixieled — 8 hours ago

found in pennypack creek, pa

i added extra photos of different angles, found this in the creek. has some smooth shinny pieces, was curious if i should break it open or just leave it be

u/iridescentarmor — 22 hours ago

Found in the Desert in the Middle East

This rock was found in the desert in Saudi Arabia over 30 years ago does anyone know what it is. I thought it could be chert or jasper but I’m unsure. I tried to capture it from different angles. About 2 in long.

u/Itchy-Comfortable-39 — 21 hours ago

Diamond or quartz

hi is this quartz we found this in the sand between port nolloth and kleinsee im sure it is quartz my friend is dreaming of diamonds please help we are not very clued up with minerals thanks

u/saddog87 — 18 hours ago
▲ 4 r/whatsthisrock+1 crossposts

What is this? Found at beach on island in scotland

Thought it loooks like some sort of tooth? maybe or jst a rock?

u/Eastern_Deer6045 — 13 hours ago

Sydney ku-ring-ai area.

We were visiting the local wild flower gardens. The area is predominantly sandstone. I grew up in this area but live over seas now so am not familiar with the geography. Would love to know how this formed. It looked like lots of marbles concreted together.

u/Juvenile_Rockmover — 18 hours ago

Chert? Dinosaur fossil? Petrified wood? Slag?

Location: Upstate NY- river bed, specifically near the prehistoric forest locations of Cairo/Gilboa

Description:

specimen is about 3-4 inches in a rough cube.

Jet black and smooth with cracks/striations all running in the same direction. Black material is attached to porous tan rock (sticks to tongue with test)

Non magnetic. surface of black material has some slight shimmer flake crystallization which you can sort of see in the last 2 pictures. not sure of hardness but feels very dense.

u/Massive_Parsley_3931 — 23 hours ago

Is this a quartz, glass, or calcitez topaz? idk but there's like a rainbow reflection when hit by light. I just found this on a garden along with rocks.

u/Objective_Motor_2716 — 13 hours ago

Found this in Taylorsville n.c. in a creek behind my house. Is it a rock or something more

found in Taylorsville n.c. in a creek behind my house in the woods

u/Zdawg112 — 17 hours ago

Is this a fossil?

Found on an Irish beach in North County Dublin. Google suggests it could be a glyptodon fossil. Does that seem accurate?

u/pinkypop54321 — 13 hours ago
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