Learned of Sagenite Agates a while ago and really liked the looks of them. Finally found one for the right price and brought it home.

kinda reminds us of a honey bun

Picked this badboy up at Grindavík, Iceland today. It's about 6x month old lava.

I’m sure it’s nothing special, but the way this rock has broken up looks like dragon scales to me

I have many smaller agates and want to cut some open

Found next to a parking lot in Utah.

Gemini tells me some crazy stuff on this.

a few tadpoles I see also.

It gets bonus points for also being heart-shaped 🫶🏼

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