Crushed Opal - "Radioactive Green" opal, super bright fluorescent green speckled with yellow flakes. Perfect for the artisan, woodworker, hobbyist or do-it-your-self project! used for jewelry, woodwork inlay, nail art, furniture and all types of crafts. Guaranteed not to crack, craze or yellow, premium lab-grown opal surpasses natural opal composed of 80% silica & 20% resin. Grown layer by layer, cultured opal material provides the most consistent colors, durability and quality as well as the most striking display of colors. Premium inlay material used for jewelry, woodwork inlay, nail art, furniture and all types of crafts. Excellent for turning, sanding and sealing with clear topcoats as well as very durable and resistant to chemicals such as acetone and alcohol. SIZES: Fine crushed opal ~1.5mm or less Medium crushed opal ~2mm Large crushed opal ~2mm-3mm Crushed opal's many uses: Ring Crafting Pen Turning Woodwork Furniture Knife Making Nail Art Jewelry