宝石鉱山

土地
宝石鉱山は、その上に採掘カウンターが３個置かれた状態で場に出る。
{T}, 宝石鉱山から採掘カウンターを１個取り除く：あなたのマナ・プールに、好きな色１色のマナ１点を加える。 宝石鉱山の上に採掘カウンターが無い場合、それを生け贄に捧げる。
Illus. Brom

Land
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 to your mana pool. If there are no mining counters on Gemstone Mine, sacrifice it.¹

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: Sacrificing this card when the last counter is removed is part of the effect of tapping it for mana.
• 9/25/2006: If the last mining counter is removed from Gemstone Mine in some way other than activating its ability (such as Chisei, Heart of Oceans), Gemstone Mine won't be sacrificed but its ability can't be activated.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/16)	Time Spiral Timeshifted (Special)