The only mine is in Utah I think. It is an old lava flow.

A stone is worth what you can get for it. I tried to buy Bixbite for two years, placing a $35 bid on every piece (some smaller than 1mm dia) I saw, got nothing. Then I placed my $35 bid on a set of 12 stones, with 2 of them over 2mm (huge for Bixbite); and the East coast had a storm that crashed the power grid, and I won them!

It is so rare, that there is no listing for them for wholesale prices, but between $1000 and $2000 is not unreasonable. I want to make a set of ear rings with the two big ones, because it would likely be the only set in the World. :) :D