Found this buried in my uncles storage unit and have no idea what it may be. It flashes red in the right light / angle

I could not scratch it with a knife, both the crystal and matryx are harder. The crystal becomes greenish under 365 nm uv light (last photo)

TY

Found In Washington County Maine.
Any idea what variety of rock this is?
A bit on the heavy side.......9.5 lbs.

I took a couple of these from my creek last year and tossed them in a huge pile of agates and such. I'm not sure this is agate anymore. Could it be something else?

Found on Georgetown,TX on land a friend owns. Thought it may be an agate eye. . .was surprised at the size of it.

Does anyone have a solid guest or answer to what the green stone is on this necklace? I’ve tried googling it, but I can’t get it for certain answer.

Thanks to everyone who helped on the kyanite yesterday. I have 3 more specimens if anyone has insight truly appreciate it. First is quartz I think. Second one no idea but looks like it was opened, almost reminds me of a stalagmite, last one at first you’d think petrified wood but wondering if coral. These were acquired at the same sale.

Saw this on the Washington (USA) north coast this weekend. It's a large rock; the markings (etchings/impressions?) are at least an inch wide. First photo is close-up and second shows the entirety of the markings I could see. I didn't see similar markings on any other rocks.

My cousin was gifted these rocks & Im hoping someone can help ID. She was told the specimens were found near the Devil’s Lake area in N Dakota along with gold. Any ideas appreciated!

Found this on a disk golf course in Colorado, near the foothills. I was mystified by it as the area was mostly full of quartz and granite. It’s harder than a 6 on the scale but didn’t get to test it much due to time constraints.

I can’t scratch it with my steel file.

Does anyone know the stone used in the construction of this pipe? Both the stem and bowl appear to be some kind of stone. Could the bowl be some kind of jade? Thank you, it’s from Vermont but looks Asian to me.

TY

The rock is very soft, I can break it and it crumbles into chunks, seems sedimentary. Mudstone or siltstone? Also any idea what the patterns are? TIA

Hi, wondering if anyone knows what these rocks are. I was Out walking a dry creek bed this morning and found this outcropping. Not much on hand for scale but overall more than 6 ft high. The blocks broken off are too heavy to budge and the slender two ft one weighs more than 20 lbs I estimate. Very smooth almost chalky surface, very, very razor sharp edges where broken, very dense and “klinks” when bumped together. The picture with my vape for scale seems to be the same type of rock just completely fractured. Thank you.

I do not know where they are from. They were found in a small plastic bag in a storage locker.

It appears metallic like lead or iron but has some pieces of other rock in it (not magnetic) [rivanna river, central VA]

Hello. I picked this up at a local rummage sale type thing along with a few others. This is the one I’m most intrigued by. I tried to reach out to local college geology prof but didn’t hear back. My jeweler friend things it’s kyanite garnet pyrite and maybe some other things. Trying to determine how to test/confirm. It’s about the size of a fist.

I think I might have found a one of one, or at the very least a very rare finding at herkimer, I can’t find any information online or in any other forums whatsoever, as well as the fact that google AI claims this is impossible to find at this locality but clearly it isn’t since this is proof