For these tests the main glass I used was Bullseye Reactive Cloud Opal, 000009. It is supposed to react to silver and copper when fired.
The above picture is post-firing. numbered from top left to bottom right, the tests are:
1. Silver leaf on 000009, also half covered by 000009. 2. Silver leaf on 000009 3. Silver leaf between layers of 000009 4. Silver leaf under 000009 5. Bullseye 001116 (Turquoise Blue) between layers of 000009 6. 001116 under 000009 7. 001116 over 0000009 8. New Aquamarine coarse frit on 000009 9. fine and coarse copper wire on 000009 10. coarse copper wire wrapped around 000009 11. fine copper wire wrapped around 000009 12. RW43fp on 000009 13. penny on 000009 14. penny under 000009 15. silver leaf on 001116 with 000009 on top 16. silver leaf on 000009 with 001116 on top 17. RW19 on 000009 18. R05 on 000009 19. RW 215 #2 on 000009 20. RW 219 #2 on 000009 21. RW39hp on 000009
Fired in the mercedes on the following program:
1. 3:00 to 677 2. 3:01 to 804 3. 3:11 @ 804 4. 3:12 to 482 5. 3:40 @ 482 6. 5:10 to 371 7. 5:11 to 20
Fired at 16:00 on Thursday December 10th, out at 15:00 on Friday December 11th.
There really wasn't much of a reaction in most cases, never with the silver leaf. The copper and copper-bearing glasses each reacted at least a little. The copper turned red, and Bullseye 001116 also turned red.
The most interesting reactions were the following:
This is # 8, New Aquamarine Transparent on 000009. I like the copper halos around each chunk of frit.
Above is RW39 hp, which is copper blue, it turned a dark, rich brown with flecks of bright blue throughout.
Since these were both copper-bearing blues, the differences between the results may have more to do with particle size than with the particular colour used.
The pictures of this firing are in the following album:
