| Clue | Answer |
|---|---|
| metal Compound Used As A Diamond Substitute Next Clue: speed __ Is Solving Rubik’s Cubes Really Fast | Zircon Back to Group 223 |
| Clue | Answer |
|---|---|
| metal Compound Used As A Diamond Substitute Next Clue: speed __ Is Solving Rubik’s Cubes Really Fast | Zircon Back to Group 223 |