Where the top prices for art can easily run into the tens of millions of dollars (and over $100 million for the most sought-ever items), the world’s best mineral specimens command only a fraction of that, perhaps one million dollars.
It’s really only the more exquisite and rarer pieces that are getting the top increases. (above - tourmaline on quartz; asking price $2.4 million)
So, you shouldn’t expect the $20 chunk of amethyst sitting on your bookshelf to finance your retirement or the kid’s college tuition.
The buyers of the top mineral specimens in many cases did not actually show up in
Minerals are still not widely collected, at least compared to fine art, suggesting that continued appreciation may be expected at least as long as Matisse’s and Rembrandt’s continue to climb.