Xénocristal alien flottant dans l’espace avec un cœur lumineux

A highly detailed xenocrystal, alien mineral, floating in space, symmetrical but slightly irregular geometry, sharp crystalline facets, translucent material with glowing inner core, bioluminescent veins, energy pulsing inside, color palette of deep violet, cyan and neon blue, realistic reflections and refractions, physically based rendering (PBR), ultra clean background, studio lighting, soft shadows, centered composition, no environment, no text, no watermark, 8k, highly detailed, photorealistic, turntable-ready object, concept art for 3D model