what rock is this??

[ozy clint]

a guy sent me these rocks that are from Nullagine in northern western australia. he says it's jasper. not knowing what jasper looks like i thought i'd post some pictures to see if anyone can confirm this or tell me it's something else.  it's really tough and has a grainy surface texture.

i think it will need heat treating to make it workable. what temp and how long guys?

[leapingbare]

Yes i would say its defiantly a type of jasper.
 Mook jasper comes from west Australia and cooks at 525*   be sure to let it set at 250 for a few hrs and let it dry then ramp it up 50* an hr until you reach 525*
Thats some cool looking stuff. Keep me posted we might have to do some tradeing.

[Bill Skinner]

Use just a couple of small flakes while you experiment.  It will take a lot longer at first, it beats blowing up an entire kiln full of rocks.  Bill

[AncientArcher76]

As mentioned small amounts low and slow or KA POW  ya got to let any water vapor evaporate slow or unecessay fractuing will occur.  The colors are awesome they will enhance a bit when fully cooked cant wait to see it!

Russ