Jeffrey I use wet toilet paper or even better cotton wool I
thought I was the only one to try this even my brother won’t. Its
great very cheap and not messy, when I was an apprentice we were
trained to immerse the ring in wet sand,but it loses to much
heat and messy.
ARROWTOWN OPALS @ JEWELLERY PH 64 3 4421288 FAX 64 3 4421488 http://www.netprophet.co.nz/nzsi/opals.htm