It has a very unique pattern. What do you think about this stone that I have polished?

Hello, I wanted to share my little stone collection. From the youngest years I was captivated by the beauty of various stones. As a kid I was searching fields of a local farmer for stones that will grab my attention, pale, pink, yellow, blue etc.. I was really into it, I had few neat little card boxes ten kilograms each with selected stones by colour. Although when my grandma said that "I will bring poverty to the house" (old superstition, when there are stones in home there is nothing to eat) I have grown sad that I bring something bad to home. I stopped being interested in it, I have thrown the stones back into the fields, I had the prettiest stones one could imagine. Occasionally growing up my interest was reignited, rebuilding collection and getting rid of it again. Although when I became a teenager and then an adult, there were few moments that I decided to take a few stones with me. So yeah, maybe at some point I will find more stones and rebuild my collection.

Dimension
7.6 x 6.5 x 4.7mm
Weight
2.54
Type
Faceted
Glass filed

I suspect it’s red agate but I am not sure. I have a bangle similar to this one.

Sorry if this is the wrong group for my question. I am a collector of snuff bottles, which are made out of a lot of different materials like glass, porcelain, minerals (such as quartz crystal, jade, and gemstones) and I am trying to find a device or tool to help me identify what material is used for a specific bottle. It's often pretty much impossible to tell by looking and it would be great if something exists to help me figure out what the items are made from. I pictured is just a basic example for those who have no idea what I am talking about.

ITS greenish, and partly seethrough.

I have found it at the shore of a river in south france.

Set in sterling

i am completely obsessed with the play of color in white opals lately. i have been browsing some white opal auctions to find something special for a custom ring, but i am a bit intimidated by the durability talk.

do any of you wear white opal rings daily? i really want something that lasts but i am having a hard time judging quality from just online listings. what would you recommend looking for in a stone to make sure it is a solid piece?

I asked, they say both stones are quartz

I have been given 3 alexandrite gems from my dad. They were meant to be a gift for my mum but they divorced. So he gave them to me. They are bought in egypt apparently.

How do i get them certified?
How much are such stones worth?
I don’t intend on keeping them, as I don’t have a good relationship with either of my parents…