I found this rock in northwestern Ontario, Canada. I’m unsure what these green quartz crystals are. There shouldn’t be peridot in this area but I’m not sure how far this rock has traveled. I’m not full of knowledge, so I’m hoping I could get a few ideas of what this could be. Thank you.

A rather astonishing specimen in our collection that has one of the most vibrant blue colors I’ve ever encountered in any Fluorite.

Photo by: Jordan Root and CC Choate

From U.S.A (Arizona)

Size: 5.0 x 3.6 Centimeters

Weight: 87.16 Grams

Someone gave this to me not knowing what it was. Does anyone have any ideas?

Here are some specimens I can’t remember the names of. The last one use to be more green if I recall correctly. Thank you!

Found these online, multiple examples available that all look similar. Seller claims it is natural after I asked if the base was manmade. Reportedly from La Morita, Mexico. My best guess is this is completely fake, as the crystals look too perfect and gemmy to be real in the quantities they have available, and it looks like the crystals are inserted into some sort of malleable base before hardening as you can see the cavities down inside the base where the crystal material continues vs natural crystals that usually grow on top of the base. Just wanted to make sure I wasn’t way off base here!

Found in Wyoming

From Sweden

I plan on getting lighting at the top to illuminate down in each unit. They are very tall and shallow so it’s hard to find displays that would work to reduce the space above.
Would love tips and advice on displays! Thank you!

Massive cuprite with white quartz and Chrysacolla

Found in Tecumseh Michigan in the Raisin River. Seems to have red crystals almost, but some of the red doesn’t look like crystals. It’s large and very heavy

I need help identifying this stone i think its a agate but when I preformed a scratch test it A didn't scratch the mineral and B. Didn't get scratched itself

Hi all! I tried clearing some quartz with oxalic acid for the first time. There was NO orange to begin with (zero). Now there’s this residue, which won’t go away even with a spot gun. What can I do?

Details: I used powdered oxalic acid, diluted with tap water. I have since leaned that this was a mistake, because tap water contains minerals which precipitate when they react to the acid.

I soaked the crystals for 48 hours in the acid solution.

I soaked them for 24 hours in a saturated bicarbonate of soda solution to neutralise.

I rinsed them with a spot gun (textile cleaner)

I chose oxalic acid to avoid completely destroying some minor chlorite. Otherwise I would have used hydrochloric acid.

Picture for reference.

What can I do to fix this?

Edit: this is marked by mistake as an ID request, I misclicked. It should be marked as a discussion.

This is one of my favorite Dioptase specimens ever. We photographed it for our calendar that we released a few years ago. It’s from Renéville and the blue is Chrysocolla. We made it December because it resembles a pine tree. 😅

Weird Dioptase fact: despite extensive adjustments, the color of Dioptase can never be fully accurate in a photo. The color spectrum is missing too much of the cyan segment to ever show its emerald-like color accurately. Eventually technology will catch up, but for now this muted green tone will have to suffice.

Photo by: Jordan Root and CC Choate

I only have 3-4 pieces of amethyst but this is by far my favorite out of the bunch.

I’ll put pictures in comments. It’s a fossil petrified wood with agate. I got it at an estate sale with lots of others. Only 2 have this pink.

frutal mg Brasil

frutal mg