opal is a crossword puzzle answer that we have spotted 35 times. Gemstone Milky gem whitish gem Cameo stone Type of gem Milky gemstone Precious stone Milky-white gem "Fire" valuable Whitish gemstone semiprecious gem Types of gemstones October birthstone colorless gemstone Autumnal birthstone Semitransparent gem Milky precious stone Milky white gemstone precious white stone gem, a form of silica Milk-coloured gemstone Common gem for a cameo A gem, but friendless? Milky iridescent stone Birthstone for October White, semi-precious stone gem with milky iridescence gemstone found in old china Gem with fire and water varieties one of two birthstones for october Traditional birthstone for October Birthstone that has a "fire" variety The 17,000-carat Olympic Australis, e.g. Mineral used as gemstone of hydrated silica Iridescent gemstone mined extensively in Australia
