Step into the shadowed edge of space with our Darkside Nebula Opal™ Rough Block. This premium Lab-Crafted™ imitation opal features a deep, dark blue base layered with vivid rainbow fire that glows from within like distant stars breaking through cosmic darkness. The color play is rich and atmospheric, with multicolor flashes appearing in flowing bands and clouds rather than uniform sheets. This resin-based imitation opal lapidary rough is engineered for cutting, carving, and inlay, offering dramatic depth and contrast in finished work. Product Specifications Material Darkside Nebula Opal™ (Lab-Crafted™ Imitation) Color Play Primary: Dark Blue | Fire: Rainbow Form Rough Block / Stone Hardness 2 on the Mohs scale Heat Resistance Up to 250°F / 120°C Composition Approximately 80% Resin / 20% Silica (varies by color) Why Choose Nebula Opal™? Dark-Body Rainbow Fire: A deep base dramatically amplifies multicolor flashes for intense visual contrast. Stable & Maker-Friendly: Resin-based composition offers consistency and resistance to cracking, crazing, and yellowing compared to many natural opals. Organic, Non-Directional Patterning: Flowing color clouds ensure every cut reveals unique internal structure. Trade-Term Search Coverage: Often compared to materials sold as aurora opal in the imitation-opal market, while maintaining the darker, saturated Nebula Opal™ aesthetic. Creative Applications Lapidary Cutting: Ideal for cabochons and freeforms where depth and contrast are essential. Inlay Work: Adds striking rainbow highlights to wood, metal, resin, and composite designs. Carving & Accents: Excellent for pendants, rings, beads, and sculptural elements with a cosmic or nocturnal theme. Craft & Design: Well-suited for knives, pens, instruments, and statement art pieces. Please Note: Nebula Opal™ can withstand heat up to approximately 250°F; avoid exposing to higher temperatures. Color intensity and rainbow fire distribution will vary with lighting and cut orientation. The piece you receive will be rough cut and may show visible cut marks on one or more faces.