I have some green chromium oxide and yellow iron oxide from my resin crafts and I'm gonna try a swirl but I'm curious about what to mix them with. I've read some people use warm water and some use oils. My question is if I mix it in oil how much oil should I use? I'm thinking maybe an ounce of grapeseed per color. Should I heat the oil. Or should I just try water so I don't have too much oil not mixed in lye. Also from reading Dennis's posts with colors I'm gonna pour at very light trace and use full water this time (or close) but I don't want my eo to seize me. I've got a bin of misc eo I got from a customer at work a while back and I want to mix chamomile rosemary w a touch of eucalyptus nd Yang lang.I mixed some on cotton and I like it I just can't find info on how much they'll contribute to seizing. Thanks for the help. You guys were great with ironing out my thoughts on my last batch.