Gemstone Mine enters the battlefield with three mining counters on it. {T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.
NM-Mint - $3.30
Lightly Played - $3.20
Moderately Played - $3.00
Heavily Played - $2.70
Damaged - $2.20
NM-Mint Non English - $3.30
Lightly Played Non English - $3.20
Moderately Played Non English - $3.00
Heavily Played Non English - $2.70
Damaged Non English - $2.20