| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| The earliest man-made examples of this silica & borate material were beads made in the 1500s B.C. | glass | $800 | J | TECHNOLOGY OF THE PAST | 2011-01-03 | #6056 | |
| The blowpipe for blowing this was invented about 30 B.C. in the Middle East | glass | $200 | DJ | SCIENCE & TECHNOLOGY | 1992-02-04 | #1717 |