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Looking back over my list, Amethyst, Lepidolite (type of purple Mica), Some Trilobyte fossils, Feldspar, obsidian, Orpiment, Jasper, a chunk of solid something with some sulfur, Malachite, and something maybe chrysocolla or chyrsoprase I'm just not enough of a hound to know, other than that, some more common Quartz, in all colors and flavors, granite, etc.

I’d say you are definitely hound enough!!!! I have a cool piece of realgar Quartz aka ruby arsenic. Probably the coolest one I own besides my red coral. I have lots or ocean jasper that I adore too! I love them all and wish to collect them all haha!

Oh and I recently got an opalized ammonite cab!!