Small chance for gold mines to find gems?

I think it would be amazing if gold mines had a small chance to find a couple gems. The chance of finding a some gems will be very small of course. Thoughts?

 

You might aswell make a gem mine that gives you 1 gem a day

 

My wallet approves!

 

You'd generate more gems by sailing around your island a few times a day

 

If hope this can be happen specially like us who don't have that much.

 

Just follow a path of light colored water(shallow) in exploration map and you get a chance to earn gold, grog, gems, and EP