RainbowsRocksAndResidentAnimals
797
15
4
Mar 25, 2025 12:43 AM
RainbowsRocksAndResidentAnimals
797
15
4
propanejeremiah
schist
Jedoc
No way to tell unless you've got a picture of the other side.
stupidbastardinutah
That's a Native American sex stone. Also known as a fucking rock.
Randomice
Potato
charondaboatman
It looks like Quartz. So it could be igneous rock or a sedimentary rock. It does seem to have some barnacle residue on it…..
RPhoenix
River quartz, possibly quartzite.
ElbowDeepInUserSub
It's always Coprolite.
macrolet
One that's the size of a small boulder.
glovelyday
Dirty and uninteresting river washed quartz.
DippinDerps
q2grapple
Oh that’s just Larry. He’s a hoot.
knexusatx
It's a concretion, not sure what that is but any time people ask the reddit nerds that's what they say
KR1570F
just looked em up. they seem to be kidney stones for the ground. they're harder than the surrounding material so it erodes away eventually and leaves behind the lump
Eatabaggadix
I'll need to see a few more pictures
spontaneous9
A pebble. An extremely water-worn one with what looks like concrete residue stuck to the outside, like it was once part of a foundation or a sidewalk.
If you want to know what it's made of, physical tests must be performed on it.
No one can tell you just by looking at a pic on a pixel screen. Specific gravity, hardness, magnetism, hydrochloric acid, and streak are the easy ones. If you don't know how to perform these simple tests, I recommend taking a geology class where you can get Lab time.
HappyToast
Thats an outdoor rock
RetrogradeLlama
Regular
Thresholdpush
Bystandr
Yes
ME2BNS12
You're gonna have to clean it up with some water and a toothbrush to be sure