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Obsidian is a volcanic glass with a smooth, jet-black surface that reflects sharp, mirror-like highlights and sometimes displays razor-sharp fractured edges.
Master the reflections: Obsidian is a light-swallowing volcanic glass, meaning its shape is defined almost entirely by its glossy, razor-sharp reflections. To showcase its dark mass, use a single hard strip-light or high-contrast key light to carve out the edges while leaving the body in deep, mysterious shadow.
Highlight the fractures: Always prompt for "conchoidal fractures" or "chipped edges" to distinguish obsidian from generic black plastic. These scalloped, wave-like ridges catch micro-reflections that instantly authenticate the mineral's natural, brittle glass texture.
Full prompt
a minimalist geometric chess king sculpture cast in dark volcanic obsidian, macro close-up focusing on its sharp facets, displaying signature conchoidal fracture lines along the polished edges, brilliant vitreous luster with deep light absorption, illuminated by a single hard key light to catch the sharp glossy reflections, isolated against a matte black backdrop --ar 1:1 --style raw --s 50 --preview
Model: Midjourney · v8.2
Made with obsidian
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