As a geology nerd (amateur status), I'm hoping that the array of types of rock to mine and possible gemstones to attain from mining will become more extensive and diverse. Does anyone else hope for the same? If so, what do you want to see? Here are some things I'd be looking forward to, haha:
ROCKS TO MINE:
Volcanic (something black-ish and porous with little streaks of lava)
Coral (probably something by the sea, or if underwater exploration is ever a possibility...)
Glacier (in the arctic or icy areas, and chunks of which last a limited time in your inventory)
Sandstone (in more deserty canyon areas, maybe)
GEMSTONES:
Amethyst
Emerald
Pink Diamond
Molybdenum
Obsidian
Mystic Fire (a type of Topaz that is generally lab-synthesizes but it's just too cool and this is an imaginary world, after all.)
And maybe fossils?
ALSO! I just thought of a new area that could be like the Glitch version of Mount Olympus. A place of ruin where legend states the giants once convened. Old pillars could be mined and reveal some sort of cool items (and could regenerate like rocks). Just a thought.