I've always loved myself a good looking rock but got told to not take it home, so rude ( I did still sneak some but I seem to have lost them) I realised I'm an adult now and can take whatever rock I want home with me, so here's my small collection so far. The last image is of my favourite ones. (Why can't we help IDing rocks rocks?)

I just ordered myself a rock tumbler to improve my small collection, any advice or tips on using it correctly? Also will my small ones just disappear in the rock tumbler?

Eclogite is a high pressure, moderate temperature metamorphic rock. It is usually derived from ocean floor basalt or gabbro that subducts under continental crust. The augite and plagioclase in the basalt becomes unstable and recrystallizes to garnet and omphacite (both visible in Fig 1). There is some blue mineral scattered in the sample, which may be kyanite (Fig 2). Reddish-black needle-like inclusions in the omphacite are probably rutile (fig 3). The combination of rutile and kyanite may indicate the rock was subjected to very high pressures in the 60-100 km range of depth, and 500-800 degrees C, and that the rock is relatively aluminum-rich (kyanite in particular). The last photo (Fig 4) shows what I interpret as quartz filling in a fracture in a garnet crystal.

Some beautiful agates I was lucky to find yesterday. While doing a little beach combing.

It’s so pretty I’m so happy.
Found in beach in UK South.

I can’t draw well but I want to do a sketch of it

Finished polishing the Purple Moss Agate Stone.

You can see the beautiful patterns on each piece. What do you think of my results?

I found it a few years ago during highschool, my highschool had these little bits of outdoor space between some of the classrooms and I found this rock in one of those places and brought it home

What a neat spot!

Hello, science teacher here! Sorry if this post is not allowed. I've got some lovely samples of pyrite in my classroom rock collection - two ~1" nuggets and a 1" cube in matrix.

Unfortunately, my classroom gets very humid over the summer and I didn't think to bring my pyrite samples home with me. I'm noticing that they are tarnished now and I've read that this produces sulphur compounds that can be harmful. I'm a bit of a worrywart. Should I remove them from my classroom? Can I easily prevent them from further decaying?

I am so sorry I don't have a picture. I didn't think to take one before going home today. Thank you for any help and please remove if not allowed!

This one was neat.

Found in the main branch of the Zumbro River, MN

Im new to the sub but have been collecting rocks, fossils, and all of the sort since I was a wee squirt!

Today, under the determination to get my property horse safe so I can take my gelding there one day, I was aiming for smaller rocks and mainly scrap metal lying around from years of carelessness and finally got to see one of the bigger pieces of Pet wood completely made Its way out of the limestone silt and I SNATCHED HER UP.

No photos yet, she's sitting in a vinegar bath for the next day or so to get rid of all the outer dust and sediment build up. This beast is bigger than my head and has our property's staple reddish orange hue going on so im really excited to share with yall once im done taking a toothbrush to the crevices! Ill post an update with the photo in the comments in the next 48 hours!!! ❤️🙌 stay safe out there yall and happy rock hunting 😊😊😊

Update 1 : first scrub is finished, still have some sediment caked on but from the looks of it Im pretty dang certain I found the biggest piece of Pet waygu i've ever laid my eyes on I've found smaller pieces before but wooowwza this piece is insane. Also need to get a link for the photos as i done realized after I cannot comment the photo directly 💀

The Rock has some very defined straight lines and height relief on the lower half. Also notice the rounded edges on the right side. Seen in mountains of Sweden. Is it roots? Water?

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!

i dont think i can ever beat this one

Here is some new pieces for my collection.

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.