I don't think £500 will buy you a very nice one. Not here in the US anyways.
I've seen some great ones measuring over a foot back in the day. They came from a mine near where I live, and all the miners had some. But that mine closed down 20 years ago and those cubes are getting pretty hard to find.
there's also some smaller ones coming out of mexico I think.
Recently bought this one to add to my growing collection
>I love to sing-a about the moon-a and the June-a and the spring-a
This is my current collection.
Still not sure if the bottom middle is chalcedony or some variant of quartz.
I find it amusing how oblivious I was to the fact that it's actually quite easy to find certain minerals and how common they are if you know where to look. I was going with my friend through some gravel my neighbor ordered for construction work, and among pebbles we found several types of quartz, and some aquamarine samples. I wish I had a decent camera for photos. Even said neighbor was fascinated when he saw it all, and joked how part of his house will have some crystals and gemstones embedded in his walls.
posted this on /v/ earlier, it's satinspar (gypsum)
I really wish I lived in a place where I could go look for rocks, but the land is nothing but clay and silt over here.
Also bismuth is just a metal, not really a mineral. Lots of metals can be made to form crystals, it's just that you can melt bismuth on a stovetop so it's really easy to do it.
Hey guys, i found this slate rock and it has some sort of metallic mineral on it, any ideas what it is?
Anyone got any idea what this is? Found it awhile back at grandma's place. I thought it's some form of chalcedony but wanted to make sure with you guys. Sorry if the colors make it seem more purplish than it really is; it's actually a mixture of black, dark purple and some small traces of dark red and blue.