I cooked them for 4 hours at 825 degrees C. I calculated that with the combination of Cu/Ag in my shibori this was perfect; I looked at the Cu/Ag phase diagram to work out the hottest temperature possible without melting. I haven't done it for a while now but will try to find my exact notes what I did.

Looks like Japanese Mokume. Beautiful!

Hi everyone, I have actually managed to get the same result at 760 degrees C, so if you can find a kiln that goes to that - go for it! If it doesn't look fully sintered, just put it back in the kiln and fire again.

Hi again, sorry, LAST comment, I promise! I have always used an extruder for the patterns (according to Hadar J) but always end up with some clay getting stuck in the extruder (losing silver = expensive). I have always made shibuichi out of it so not really lost it - but this method with folding and pressing seems to generate very little loss. Awesome!

Sry.... thats not right! You must say Fahrenheit! 1400 c and you get a mixed drop.... the liquid melting point of copper and silver is about 1080 c and 1150 c you wont melt it... just "bake" the molecules like sintering. If you raise to 1400 c you get a withe glowing liquid drop ....

Nice easy way to make Mokume Gane. Mixing the silver and copper would give more shades and be closer to the Japanese original. Nice technique

Very beautiful!! I find that it works great also with Art Clay Copper and PMC3 if you mix in copper to a total of 7.5 %(like sterling) into the copper clay. In fact, I get even better results this way in summer because I find that in my hot climate, the Art Clay Silver gets too dry. I also DIY my own shakudo clay from copper, gold and silver clay to make these designs; check out some examples on my channel. I learned the technique from Hadar Jacobson's books a few years ago.

Great lesson. Thanks so much

I was wondering if I could mix the two together or not. I know one fires at a different temp than the other and so I wasn’t sure. Even though I purchased them together for that purpose. I’m glad I ran across this! Thank you

Great video, can you do this with any brand precious metal clay? Also when you say 'ramp up' does that mean you put the piece into a cold kiln then let the temp raise to 490°C then take straight out? Lastly, do you then preheat the kiln to 760°C before putting the piece in carbon inside the kiln or do you just put it in & wait for the temp to rise, then hold for 4 hours? Thank you

awesome rings

PS again. I get the best result by using Art Clay Copper (no other brand! Tried many and none as good as ACC!!) + either Art Clay Silver slow dry or PMC3.

Can I embed stones directly into this method?

great job!

Jenny, if what you say is true that one can in fact make these marbled rings at 825 degrees C it will truly solve my problems as I have a small one bedroom flat and once you go over 1,260 degrees C, the kilns become a fair bit larger and more costly so it would help me incredibly if you can indeed confirm this by finding your notes. I am very keen on making pendants this way. Any information you can help me with the Cu/Ag would also be good as I have in fact never heard of this before!

Can you bake bronze clay in a microwave kiln?

Hi Jenny, does one need a 1,400 celcius kiln to do this or is it possible to do it with a slightly less powerful kiln but bake it for longer?

Can I use the oven instead of the road you used? What the Orange Material name? And how do the configurations / disassembly form on the ring?

Would a kiln of 1,100 deg. C be sufficient as I know she says 1400 degs? Perhaps leave it for 5 hours at 1,100 deg. C?

Hi can we do this any color gold and silver beside useing copper?

I just bought a load of carbon (Sagano) but it says nothing on the pack about 'acid washed'. Is the "acid washed" crucial to success of product have i wasted a $%&/ load of money and postage and time on a product no good for the use? Any answers? Thanks.

hello can i make a question, is there in market any metal clay on the color of hematite? like when is almost black metal colored and also is there are for the other colors of iron oxide cristals like pirite

That's cool

anyway i can marble my homade cooper clay and sliver homade clay?

Where can we find the written instructions?

PS. I first burned off the binder in AIR, then cooked them in carbon.

So with this tech. you burn the binder off in air at 825 Fahrenheit.....then fire in carbon at 1350-1400 again in Fahrenheit measurement...

sorry - checked with Jackie and you need a 1400 Deg kiln - it won't work with a lower temp

Jackie, I don't know if you read this, but if you do - do you have an email address? I really want to show you a bead I made a little while ago, but I can't send messages with pictures attached here.

First stage 842 C for how long?

Can you do this technique with let's say bronze clay as well?

still need 1400 degree kiln!

What website can I buy this clay. Beautiful

I mean, if you mix in copper into the silver clay! Sorry!

This process is a lot of hooey. I tried following the process and it was a disaster. First of all the copper clay is fired at a much higher temperature than the silver. I left the piece in for the 4 hour period at 842 Degrees and bubbled and there was absolutely no marbled effect. I tried it again making a different piece with the arty clay. this time I did not follow the directions by leaving it in for 4 hours after the initial period of ramping up to 482 and removing it. I just followed the normal process of firing metal clay. Again there was not marbled effect. If anyone knows that this work for sure please let me know what I am doing wrong.

Too much waste.