The first thing I did when I received this glass was to label it, as it just looks like any other black! So I labelled it with a pen and I also put some washi tape on one end so that I can immediately spot it on my bench! Note, when you pull this inro stringers you will see that this is more of a deep saturated blue. (One way to tell this apart!).
Also important note from DH - For maximum opacity, particularly in thin applications, briefly cool the bead then lightly flame strike (30 seconds) before annealing for 2 hours or more at 950F.
The notes that Double Helix have on their website did say that this black was reactive with lustre glass ... so I was a bit excited to see what it would do. Not wanting to waste any, I made a core with CiM Tuxedo and encased with Oracle. The bead on the left had bands of Triton around the middle with some Aurae frit. As soon as this went in the flame I could see a reaction around the sides, it reminds me a little of working with copper green but nicer! After I melted it in, it really just had a quick reduction! I love the purples that came out and the side reaction.
The second bead, was made with just Aurae frit, and you can see the halo rim where the two colours meet. The third was Helios, a little reaction, but not as dramatic.
This is certainly one to really have a play with to see what reactions you can get!
I use Reichenbach's Deep Black a lot for very very fine stringer, so I wanted to see how Oracle would compare. With the very fine stringer it was quite hazy and not as saturated. If you look at the spots, a quick glance they look fine, but a close look and you can see the edges are not as crisp as Deep Black. These were made on CiM Peace.
Now to see it on Effetre Clear (006). When I initially saw the Oracle bead, I did think it was black. Then as I set up the picture I could see more deep navy blue, especially reflecting through from the other side.
I wanted to see if Oracle would web at all. So with a hair fine stringer I wound it on Effetre clear, super heated it with an oxygen rich flame and marvered before heating again. As you can see it did fuzz a little but is a definite blue.
My last bead was to try white dots on the surface. I used CiM Peace as I find this more saturated than Effetre white. As you can see the white has a halo effect, and you can see blue inner circles. It reminds me of Runino in this way, maybe it has some spreading tendencies?
So for me, this black isn't one to replace my Deep Black for fine lines. But I am quite intrigued to play more with mixing it with some lustre colours to see what reactions I can get.
Juliette Mullett of Avette Glass
Double Helix Oracle-Black
• In rod form it looks black, held up to the light it looks a dark cobalt blue, similar to Triton. Melts nicely, no spitting or boiling.
• Overall findings - A good black for raised dots, as a solid black base and looks more black over colours as opposed to underneath colours if used
thinly. Looks more blue than black on some colours and some cracking and peeling experienced with Effetre Turquoise opaque in this test. Overall
I love this colour, I like it’s diversity of colours and hues that are achievable. The blues that it does sometimes give are beautiful and I wouldn’t
consider this a flaw as it offers flexibility of a wide range of hues that can be achieved. I loved it’s reactions with Multicolor and Fire Lotus and am in
awe of the ‘new colour’ I was able to achieve with Antique ivory and silverglass over Oracle-Black. A glass that will be staple in my work ongoing.
- Used over Effetre Turquoise opaque I experienced incompatibility cracking and peeling throughout that could be seen and felt, in particular around
the edges of the dots of Oracle-Black and the edging of the swirl. I would like to test more scenarios of Turquoise and Oracle -Black to see if the
peeling and cracking is consistent each time.
- Each time Oracle-Black was applied the bead was cooled then struck for 30 secs. Annealed for 2 hours+ at 526C. Worked on a Nortel Mid
Range Plus Torch and 10lpm Oxycon.
- A more detailed description of each of the 21 beads tested:
1. Effetre White core, Oracle-Black raised dots - A nice deep, true black with no bleed, as expected.
2. Effetre White core, Oracle-Black swirls melted in - The Oracle-Black here looks like a very dark ink blue. The edges of the Oracle-Black look
blurry with an outline of a slightly paler ink blue hue. I actually like this effect.
3. CiM Peace core, Oracle-Black dots melted in - The Oracle-Black here looks like a very dark ink blue. The edges of the Oracle-Black look blurry.
4. Oracle-Black hand mixed with Effetre White. I hand blended these 2 colours then wound the gather onto the heated mandrel. Encased in Effetre
Super Clear 006. End result after annealing is a cobalt blue and white looking streaky bead, beautiful in colour but no sign of black.
5. Oracle-Black hand mixed with Effetre White over a clear core. I hand blended these 2 colours together. A clear core of Effetre Super Clear 006
was used as the base colour then the hand mixed blend applied over that. Encased in Effetre Super Clear 006. End result after annealing is a
cobalt blue and white looking streaky bead, beautiful in colour but no sign of black.
6. Oracle-Black hand mixed with Effetre White then applied to the heated mandrel. After annealing looked like cobalt blue and white mixed.
7. Effetre Turquoise Opaque with hand blend of Oracle-Black and Effetre White. A base bead of Turquoise with the hand blend swirled over the top.
No sign of black, cracking and peeling around the hand blend mix outline.
8. Effetre Turquoise Opaque with Oracle-Black dots. Base of Turquoise with Oracle-Black dots melted in. Dots looked crisp and clean, nice deep,
sharp solid black. Cracking and peeling visible and could be felt. Cracking and peeling indicative of incompatibility as it followed the shape of the
9. Effetre Super Clear 006 core with Oracle-Black dots melted in. Dots look like cobalt blue with slight fuzzing around the edges of the dots.
10. Effetre Super Clear 006 with Oracle-Black threading (slightly raised). Oracle-Black was applied via a spun technique, partially raised. Oracle-
Black appears to look blue-black after annealing.
11. Oracle-Black core, rolled in Triton (fine blend), reduced by increasing the propane to a metallic silver shine. Encased in Effetre Super Clear 006.
Unable to see core colour through the frit, a beautiful pearlescent pale blue shimmer throughout. Love this.
12. Effetre Dark Ivory core. Oracle-Black was swirled thinly over the whole bead. I then really heated up the bead to clear, I wanted to see how far I
could push the boundaries of this colour. I then cooled and struck the bead then applied swirled silvered ivory stringer over the top. Oracle-Black
thin stringer was then applied over the top along with raised dots. The bead was then cooled and struck before going in the kiln. The black
stayed true black throughout after annealing.
13. Effetre Dark Ivory core with Oracle-Black stringer melted in. The colours stayed true black after annealing.
14. A base of Effetre Turquoise Copper Green 591231 with Oracle-Black stretched dots. Encased in Effetre Super Clear 006. The black stayed a
strong black after annealing.
15. Dahlia Bead. A core of clear then petals of Oracle-Black. Effetre Turquoise Copper Green 591231 petals over the top of Oracle-Black. Encased
in Effetre Super Clear 006. A very beautiful combination but just some slight cobalt blue ghosting around the Oracle-Black petals, but still a lovely
reaction, adds contrast. The Oracle-Black raised dots to base stayed true black.
16. Opalescent bumpy bead. A core of CiM Peace. Melted in dots of Oracle-Black, cooled and struck then Effetre Antique Ivory dots over the top,
melted in. Triton dots over the top, melted and reduced (Increased propane). Effetre Super clear 006 raised dots to finish. The Oracle-Black
stayed true black and the Antique Ivory over the top created a ‘new colour’ giving the final look quite unique, sea blue-green with hints of sage. A
lovely surprise of colours not achieved before via other brands of blacks that I have used.
17. Tag Fire Lotus over Oracle-Black. After applying the Fire Lotus over Oracle-Black the whole bead was heated up super hot until it was nearly
dripping off the mandrel. The bead was then cooled and struck 5 times then encased in Effetre Super Clear 006. Final colours were more plum
and aubergine hues with hints of pink, really beautiful and one I would definitely repeat.
18. Oracle-Black core with Reichenbach Multicolor over the top then encased in Effetre Super Clear 006. Oracle-Black was cooled and struck then
Multicolor was randomly swiped all over then heated up super hot until nearly dripping off the mandrel. The bead was then cooled and struck 4
times then encased in Effetre Super Clear 006. I adore the colours achieved here with the edges of the Multicolour glowing a space like bright
blue. A definite repeater for me, I loved the reaction the Oracle-Black gave the Multicolor.
19. Triton spacer bead with a strip of Oracle-Black around the equator. Triton was reduced then the Oracle-Black was applied, cooled and struck.
The bead was then reduced again to bring back the reduction. Oracle-Black stayed true black and the Triton was unaffected.
20. Oracle-Black core with ring of Silvered Ivory Stringer around the equator. Oracle-Black was cooled and struck and SIS applied. The bead stayed
21. A spacer bead in Oracle-Black - cooled and struck. Stayed true black.
Juliette Mullett - Avette Glass. 31 Jan 2018