[VortexDream]

It's fairly common. Known reserves amount to around 80 million tons. Yearly production is around 100k tons.

I think I saw a projection for a yearly consumption of around 1.7m tons in 2030.

I'd say the biggest issue is simply going to be environmental impact. This is a big reserve that can't be mined because of environmental regulation. That's a lot of money to just pass on, and I don't think that's going to hold.

[merrywhether]

Is it really that much money? It’s not like that’s pure profit; mining requires large up-front capital investment to even start. Break that down to 20 years (round number for illustration purposes only, seemingly on the quick side based on quick searching), and you’re down to $75mm/year which begins to sound like a lot less money when you start adding the recurring costs of operation to the initial capital cost. Add in the state mandates for damage escrow and you’re probably looking at a business that makes the owners wealthy, but otherwise produces only a handful of jobs and minimal tax revenue while permanently destroying some of the natural beauty of a state heavy on tourism that relies on that beauty.

Put another way: if it was a lot of money they’d find a way to do it underground.