Gemmology Today Quiz #13

This issue, the test is a little different. Remember there are no time restraints and you are free to consult any reference materials.

In some cases there may be more than one correct answer. If this is the case, you will be notified as each question appears. For questions where there is only one possible answer, please make your selection carefully since you will only be given one opportunity to select the correct answer.

For questions where there is only one correct answer, you will receive one point for each correct answer. For questions where there is more than one correct answer, you will receive one point for each correct answer and a one-point deduction for each incorrect selection.  

The pass mark is 70%.

Good Luck.