tag:blogger.com,1999:blog-6638497050839732163.post4798582415784329630..comments2024-03-28T20:37:07.097-04:00Comments on North Carolina Clay Club: How different RIO affects glazeAmy Wallerhttp://www.blogger.com/profile/04965597757961207665noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-6638497050839732163.post-59684042676026410932009-11-19T17:12:16.739-05:002009-11-19T17:12:16.739-05:00Kari,
All iron oxides have varing amounts of iron...Kari,<br /><br />All iron oxides have varing amounts of iron in them. You have to check the percentage. That is why some people buy a 50 pund bag so that it doesn't vary. (hard to use 50 pounds of iron oxide.)They do the same with rutile.<br /><br />You may run another test with less iron to match your earlier sample, that way you can extrapolate the amount needed.<br /><br />I am pretty sure that anything with 11.5 % iron will be a dark brown /black so you may be able to use 10% instead and we about the same.<br /><br />Try synthetic iron sometime!John Britthttps://www.blogger.com/profile/14929341797146345976noreply@blogger.com