When Dr. Quest re-lights the trail of gunpower at a three-quarter point, it burns only in the direction of the powder keg when it should have burned outward (both directions) from the point of ignition.
Kaseem intends to blow up the Quest party with a keg of gunpowder. They're bound at wrists and at ankles but aren't tied to anything, just leaned up against a wall with the trail of gunpowder on the floor before them. Any one of them could break the gunpowder trail leading to the keg with their feet, yet they totally rely on Bandit, a mere dog, to understand the dilemma enough to put out the fire.
Since Zanium is far rarer than gold, it's likely worth more than the gold it's mimicking.