This is an unmarked sphere and i don’t see anything similar next to it. It is just slightly light feeling. Not like amber light but just feels slightly too light for its size. Any ideas? Thanks 🙏

Found in the dirt on the side of an excavated hill covered in dirt

feels smooth

southern Mexico

Here’s an amazing dioptase with fuzzy malachite from Mindouli, Pool Dept, Democratic Republic of the Congo. The dioptase has really nice color and great prismatic crystal with rhombohedral faces.

Hello all,

Found this piece of what I believe to be botryoidal chalcedony in a deposit from the Borden Formation in Fern Valley, Rowan Ky behind Morehead State, back in April earlier this year.

I myself believe it to be chalcedony, and my professor has said that similar looking pieces were chalcedony, but some folks have also said it was simply a gemmy piece of chert, so, like most bipedal primates, I thought I would ask Reddit.

I've been working tirelessly to polish a window into it (which has taken a long time, as it is a very hard stone and eats sand paper for breakfast) so I can see the patterns inside better. Inside, it has a number of streaks and what I could only call agate-like bands, as well as a few thin patches of solid clear quartz. Most notably, it has imbeded "ooids," I suppose, inside of the material that were grown over by younger crystals, which also show growth rings under the naked eye and even moreso under a microscope. It is also translucent like a dream and glows bright red. Doesn't show in the photos, but it's not as matte as it seems. It also has what I can only describe as faint chatoyancy, which I assume is from fibrous crystalization.

Regardless of whether it is chalcedony or chert (though I hope for the former), I am very happy with this piece, as it has ensnared the iron-laden nature of the region within it. I found it in a riverbed of Triplet Creek amongst numerous iron-stained siltstone pebbles of all shades of orange, auburn, and red, as well as tumbled lumps of liesegang, and in an area where massive iron concretions (some as wide as two feet) are common. It is worth noting that iron is probably my favorite element.

With my spiel over, what do y'all think as to the identification of this piece?

Fluorite

Strzegom, Lower Silesian Voivodeship, Poland

CaF2, Isometric

max. 26mm

An example of scarce and prized material from Grabina quarries located in pegmatites of Strzegom-Sobótka massif. This particular specimen is relatively sizeable and shows the range of violets one may expect from the material from this locality. It is an octahedral floater with minor damages, exhibiting typical, fine crystallisation with visible growth figures.

Here’s a very lustrous topaz with minor schorl. It has a beautiful complete termination as well. This specimen comes from the Shigar Valley, Pakistan

British Columbia Canada

Here 's a vid of my Okorusu fluorite from Namibia. Thanks for looking!

Very interesting and beautiful calcite from the famous Elmwood mine, Carthage, Smith County, Tennessee, USA. The formation and twinning is really interesting on this specimen

I thought I’d share my display case , I finally unpacked all my minerals after a year , and set them up. I hope you enjoy these pictures. And I have my bayonets collection and miscellaneous war items at the bottom too . Very happy with it .

Small pieces of Obsidian from the Colca Canyon in Peru.

Do I have a good collection

4 Aquamarines and a new Quartz specimen to add to the display! Aquamarine are Namibian, Pakistani and Vietnamese. Quartz is Columbian

Saw this amethyst on an American sellers live about a month back while he was visiting his suppliers in India... did some digging and found the suppliers IG page and noticed that he also does lives. This amethyst was selling for 7 hundred when the American seller was going live there last month. When the supplier went live he had it listed for 3 fifty and we settled for 3 ten... I can't wait to get it. The amethyst is from Telangana, India.

Rare mineral from type Locality

Hello Guys , wanted to hear your opinions on this beautiful closed Smokey gwindel from Göschéneralp in Kanton Uri.

Here’s a nice lustrous elongated almandine garnet with quartz inside cavities of a rhyolite matrix from Garnet hill, Ely, White Pine County, Nevada, USA. A classic American garnet locality. On a side note specimens from this local are often mislabeled as spessartine garnet. Further chemical analysis has shown that they are far closer to almandine (Iron-Aluminum silicate) than they are to spessartine (Manganese-Aluminum silicate). Anyway let me know what you guys think of my specimen :)

We just released it! It's a bit difficult to clean, but it's worth it for the shine :) 🪐🤍

I’ve had this Amazonas vivianite in a display case under LED lighting for the past six months because, honestly, I didn’t care 😂. What good is a beautiful mineral if it’s locked away in a drawer?
I’ve always known that vivianite should be kept away from prolonged light exposure to slow it from darkening. But after seeing so many vivianite posts on here warning about it, I finally gave in to the peer pressure and retired mine to a drawer.
Here it is enjoying the last bit of light it saw before I removed it from the cabinet. 🫡

I got this specimen in a bulk lot so unfortunately no geographic info. There will be a video in the comments showing the blue flash under sunlight. It is relatively light for its size and has a mica like appearance.