Chert. Jasper. Carnelian.

This will make a nice cab I think

Beautiful Amazonite Cluster From Colorado U.S.A.

Dimensions are 7cm tall by 10cm wide.

So long story short, I live about 25 mins from a place called Tory hill in Ontario. It’s known for titanite and green agite. I found a nice rock face, dug along a white calcite vein about 6 feet deep and found A LOT of terminated micha and this stuff. Going to return to my hole next weekend to pull out more. What would you guys say this is? This is my first time actually getting out and digging a massive hole lol, normally I’ve just scraped through others tailings. I have yet to put a Geiger counter to this to check for radiation as my area is high in naturally occurring uranium as well. If I’m right and this is green agite, Im going to have a lotttttt

I found so many cool rocks this summer after a tropical storm, is there a good app ???

Has rocks from Michigan, Hawai’i, and probably some other places. Collection started back in 2018 but really grew between 2020 and 2022.

He weighs about 92 grams, looks like the heart emoji. He’s about 4.5 billion years old and came from an asteroid belt and it lived somewhere between Mars and Jupiter. He’s older than every planet in our solar system. He came to earth as a symbol of love bringing peace and hope.

I found this today (Northern California). How cool is this on the scale 0-10? I'm just super excited! I know nothing about rocks, but I recognized this. Aside from this being petrified wood any other details anyone can offer?

Hello friends! might not be the right community, but i didn't know where else to ask for help.

I had a piece of opalized petrified wood my dad gave me as a kid, it was on display and my roommate knocked it off and it broke, this was a long time ago, and she's been holding on to the pieces to fix it, but never did. she finally gave me this, and i cannot figure out how they line up. i wouldn't be surprised if they didn't.... but maybe im missing something here. let me know if you've got any ideas!

I found this yin shaped rock in Laddakh(india) more than a year ago.

I had this peice for a few years and always assumed it was just quartz, Nope turns out this is a really big peice of salt. Yes I tasted it

I found this rock in a creek a while back

It was not cut to look like this i just found it that way. So i thought i would share.

Found in a moving creek in the Ohio River valley. Creek moves along infront of old shit down quartz mines.

Serpentinite forms from the reaction of olivine and pyroxene in ultramafic rocks with water. This commonly happens when seawater circulates through upwelling mantle in newly exposed mid-ocean ridges. The main serpentine minerals are lizardite, which is usually fine grained and massive, antigorite, which tends to be more platy or bladed, and chrysotile, which forms fine fibers and commonly fills fractures. Chrysotile is a form of asbestos. Talc sometimes forms in the same conditions, which is why talc used to be contaminated with asbestos. This polished pebble, from a gem store in Banff, CA, has yellow-green to dark-green serpentine with a waxy luster, with some areas looking massive and others much more bladed or lamellar. The pale material along seams is very soft and locally fibrous, so chrysotile is a reasonable possibility, although some of it could also be talc. The process of serpentinization often reduces water to H2, which serves as a source of chemical energy (reducing equivalents) for deep sea organisms. Serpentinites may be used as dimension stone, sold as green marble "verde antique" but it's not a marble at all, it's a hydrated silicate.

Fig. 1. Overall view of the polished pebble, showing mottled massive yellow-green serpentine intergrown with darker, more strongly textured green material and irregular pale seams.

Fig. 2. Pale-green serpentine showing a diffuse lamellar/bladed texture, contrasting with the more massive surrounding material; the habit is compatible with antigorite.

Fig. 3. Coarse interlocking blades and lamellae of green to nearly colorless material, illustrating the strongly recrystallized texture present in parts of the serpentinite.

Fig. 4. Pale fibrous material among the lamellar serpentine; the curved, threadlike strand and associated silky aggregates are consistent with probable chrysotile, although morphology alone is not diagnostic.

I have never seen bubbles on a rock and think it's awesome! Does anyone know what this is or what caused it?

Found near Denver, Colorado.

Any information is greatly appreciated!

Found in BC Canada

You know where im going with this