Birthstone Quiz

1. An October birthstone is described as hydrated silica without the orderly crystal structure of a mineral. Which is it?

2. Which purple variety of quartz is February's birthstone?

3. Which green gem is traditionally associated with May?

4. On the commonly used modern U.S. birthstone list, which gem represents January?

5. A jeweler shows an October gem with sharply separated pink and green zones in one elongated crystal. Which birthstone best fits that description?

6. Which June birthstone is especially known for changing from greenish hues in daylight to reddish hues under incandescent light?

7. A blue-violet gem is identified as a variety of the mineral zoisite. Which December birthstone is it?

8. A collector wants a March birthstone from the same mineral family as emerald. Which should they choose?

9. Which birthstone belongs to July on the modern list?

10. A November-born person wants the month's yellow-to-orange birthstone that is a variety of quartz. Which gem matches?

11. A shopper wants September's birthstone and learns that it belongs to the same mineral species as ruby. Which gem fits?

12. Which statement accurately describes garnet, January's birthstone?

13. A gemologist needs April's birthstone and the mineral rated 10 on the Mohs scale of scratch resistance. Which gem meets both clues?

14. A shopper requests the natural December birthstone often confused by name with laboratory-made cubic zirconia. Which gem do they mean?

15. Which June birthstone is an organic gem produced within certain mollusks rather than a mineral crystal?

16. A gem is identified as the transparent green gem variety of olivine. Which August birthstone is it?