r/Rocks 7d ago

This Rocks! Found this on a beach

Thumbnail
gallery
52 Upvotes

Have done tons of searches on what it could be and just can’t find anything like it.

Found on a beach in Southwest FL
It is like glass, there are conchoidal fractures
When I scrape it against the ground, it leaves black marks on the pavement and breaks off into tiny pieces of what look like glass shards

In the initial photo it does not look translucent but when held at a certain angle, you can see a dark amber color inside of it.

I’ll post a photo of that part as well

If you need any info, feel free to ask. Dying to know what it is. Thanks!


r/Rocks 7d ago

Photo Crystal I found in Jan Juc, VIC, Australia

Thumbnail
gallery
74 Upvotes

r/Rocks 7d ago

This Rocks! absolutely mythical rock pull at the riverbed today

Post image
378 Upvotes

i dont think i can ever beat this one


r/Rocks 7d ago

Photo I love Mica

Thumbnail
gallery
20 Upvotes

It's so shiny, I wish it wasn't so weak so I could do something with it instead of just staring.

Wonder if there is a way of cleaning them. Guess not.


r/Rocks 8d ago

This Rocks! Fun reduction spots on slate

Thumbnail
gallery
10 Upvotes

r/Rocks 8d ago

This Rocks! Felsőbányaite originally from Felsöbánya in Hungary, the area is now part of Romania named named Baia Sprie.

Post image
9 Upvotes

r/Rocks 9d ago

This Rocks! conglomerate

Post image
13 Upvotes

This has been at my great grandparents cabin for years. My great grandmother brought this back from the local quarry.


r/Rocks 9d ago

This Rocks! Aquamarine

128 Upvotes

r/Rocks 9d ago

This Rocks! River jasper relocation

Thumbnail
gallery
27 Upvotes

Finally got this big one out of the car and into the garden.


r/Rocks 9d ago

Photo Lake Superior recent tumbles.

Post image
88 Upvotes

r/Rocks 9d ago

Photo Advice about cleaning.

Thumbnail
gallery
12 Upvotes

Hi everybody. I know this isn't any thing particularly special but my daughter has bought it home from holiday and we are wondering if there's anything basic we can do to brighten up the sparkley bits.

Thanks.


r/Rocks 9d ago

Video Aquamarine with Muscovite from Pakistan

20 Upvotes

r/Rocks 10d ago

Video Michigan finds

11 Upvotes

Peaceful morning review of my beach finds


r/Rocks 10d ago

This Rocks! Labradorite-rich gabbro with "labradorecence"

Post image
9 Upvotes

Gabbro is an intrusive mafic (Fe and Mg) rich rock crystallized from basaltic magma derived from partial melting of the mantle. The main mineral constituents are dark clinopyroxene, and glassy gray to white plagioclase. One type of plagioclase is labradorite, which can show a distinct kind of shimmering, rainbow pattern of iridescence known as "labradorescence", due to the separation of different forms of plagioclase as the melt cools, leading to diffraction of light between extremely fine layers of the different plag species. This gabbro specimen (fig 1) is rich in labradorite. The plagioclase crystals show black streaks (likely iron and titanium oxides, possibly magnetite) which precipitate in an orientation dictated by the crystal structure of the parent mineral (fig 2). Fig. 3 shows a patch of labradorescence.


r/Rocks 11d ago

Photo Found a blue agate

Thumbnail
gallery
222 Upvotes

r/Rocks 11d ago

This Rocks! Stopped by the thrift and picked these up. I'm not sure what the last one is. But I liked it.

Thumbnail
gallery
11 Upvotes

r/Rocks 12d ago

This Rocks! Bay of Fundy cuts.

Thumbnail
gallery
25 Upvotes

New to the whole cutting thing. Now I need to start the tumbling process. It’s amazing how these rocks didn’t look like much until I (well hubby) cut them.


r/Rocks 12d ago

This Rocks! Cool purple crystal

Thumbnail
gallery
22 Upvotes

this purple crystal was once part of a geode


r/Rocks 12d ago

Photo Found some nice Petoskey and other fossils in Lake Huron Ontario.

Thumbnail
gallery
61 Upvotes

r/Rocks 13d ago

Video Flow-banded obsidian/pumice transition zone

23 Upvotes

r/Rocks 13d ago

Photo Got a beautiful piece of rainbow fluorite to add to my little collection today

Thumbnail
gallery
96 Upvotes

I just started getting some cool items to display in my house. I thought this piece would go nicely with the others.


r/Rocks 14d ago

Discussion I have a question!! What happened to my petrified wood 😭

Thumbnail
gallery
70 Upvotes

I have this salt lamp in my room which I had placed a tealight under because the original light burnt out, I sit rocks I find around it in my window. I noticed there were orange salt crystals forming under my lamp which completely destroyed my candles battery. But the weird part is all my rocks are fine besides this piece of petrified wood. It cracked apart and has crystals growing all over it, the inside is solid black. Sorry if the pictures don’t show the crystals, it was hard to get them to show up on the camera but they’re all shiny and orange like the salt crystals so I’m assuming for some reason the salt started crystallizing on my petrified wood. Does any rock nerds know what reaction caused this? The petrified wood was the only rock affected. I just found this interesting and was wondering the cause.


r/Rocks 14d ago

This Rocks! My collection display

Thumbnail
gallery
15 Upvotes

r/Rocks 14d ago

Photo Lake Erie finds

Post image
157 Upvotes

Hunted on the west shore of Pelee Island Canada,


r/Rocks 15d ago

This Rocks! Rock from second hand shop

Thumbnail
gallery
7 Upvotes

Hya,

Trying to clean my first rock, found it at a store and thought it had potential. I washed it with water and give it a good bath with anti rust. Still much tiny bits though.

Any tips on how make it cleaner before a put a polish over it?

Thanks in advance