More Gems

1. Where is the opal?
   
2. How do I get the opal?
   
3. Where is the zorkmid?
   
4. How do I get the zorkmid?
   
5. Where is the topaz?
   
6. How do I get the topaz?
   
7. Where is the garnet?
   
8. How do I get the garnet?
   
9. Why are the gems important?