A macro photograph of an alien crystal embedded in the wall of a futuristic cave, captured in a dark and eerie environment. The crystal has sharp, geometric facets in shades of deep orange, amethyst, and emerald, with a subtle internal glow. Tiny, glowing veins run through the surrounding rock, adding an ethereal light. The background features a soft bokeh of alien cave formations and bioluminescent moss, creating a haunting and mysterious atmosphere. The composition centers on the crystal, with sharp focus on the detailed facets and glowing veins.  8k, high resolution details,  ultra detailed texture, biomechanical textures, soft colors, alien bokeh background, ultra realistic, studio photo quality.