Watch a gemcutter work with fluorescent green hyalite opal

Steve Moriarty of MoreGems.com works with designer Christopher Michael to create beautiful faceted gemstones, like this hyalite opal that glows under UV light. Read the rest

The Opal's Fire

Opals, a rainbow of fire locked in rock, are among the most wonderful of nature's gifts. Maggie Koerth-Baker returns with the light truth about weird silica.