The Panasqueira mine has created an appetite for Apatites. These rare green, purple, or blue crystals are becoming more and more popular with mineral collectors around the globe. Come along as we are the first to film a behind-the-scenes look at one of the most mineral-diverse mines. Later, we stop at Porto; which uses mineral rich schist to plant and nurture a delicious export all its own. We meet a mineral dealer selling specimens out of an old restaurant right next to the "Mouth of Hell."