You are presented with the question "Where are deposits of gold found?" and the following answer choices: 
- In sediment
 - kalenchoes
 - fissures
 - rocks
 - mines
 - coral reefs
 - inactive
 - calcite

Now knowing that vein deposits of gold and silver are formed by igneous intrusion and veins of Gold ore most commonly occur in cracks and fissures in igneous rocks, choose the best answer.


 

   fissures      