What causes the color difference in Silver Sheen Obsidian and Gold Sheen Obsidian? GeologyHub What causes the color difference in Silver Sheen Obsidian and Gold Sheen Obsidian? Leave an answerCancel replyYou must login to add an answer.Continue with Googleor use Username or email* Password* Remember Me! Forgot Password? Continue with Google Related Questions What is the difference between pyrite and pyrrhotite What kind of rock contain gold? 'Green' conglomerate rock Why is the formation of pyrite so geometrical? Why is the formation of pyrite so geometrical? What is the sulfur hardness on mohs scale?