Stalactites and Stalagmites
Here you may find many different types of Stalactites and Stalagmites. The difference between the two are Stalactites grow down from the ceiling and Stalagmites rise from the floor.
Some of the most popular are Amethyst Stalactites from Uruguay and Rhodochrosite Stalactites and Stalagmites from Argentina. Kokoweef Caverns cave Onyx is another rare stalactite that could be listed here.
Any of my items can sell out at any time but I will try and add more if I can so keep looking back if I don't have what you want