Gemstone deposits?

[Quasic]

This is an actual idea, not like my steelmaking rant.

Say, one is walking through the caves, miner's helmet flickering, this is a new place... the ultimate exploration, spelunking....

And there is a glimmer in a rock, a little touch of color, maybe a crystal? You gently pry at it with your pick. Aha! A rough gemstone!
Oh dear, I am only dextrous enough to get two out of this one, i have heard up to eight ! And it's only garnets, wish it was diamond!

They could be random, like foraged herbs, only in caves, and quite rare and hard to spot?

Of course I realize the major nature of this addition. Deposit spawning, rarity gauging, many icons , much code. :/ and i am sure that similar things have been suggested.

But it would be awesome!

[Riou1231]

Ooh, and new stuff!

[Onionfighter]

There should probably be a merged gem thread.