Hydrothermal quarts is laboratory-made, not natural
Just be aware that this is lab grown quartz. It's not a big deal because it's still a stone, just not naturally grown. My issue is that it should be make clear to people who've never heard of hydrothermal quartz. It's misleading and it seems intentional, because you wouldn't know it if you didn't read details of composition at the bottom and went by item description heading.
Rating: 3 stars