🎬 Prompt:

Ultra-realistic macro ASMR video based on the provided image of a raw stone with a polished cross-section revealing vivid horizontal rainbow crystal layers. The stone remains identical to the reference image in shape, color, and texture. A stainless-steel kitchen knife with a brushed metal finish slowly enters frame and makes one clean, straight top-to-bottom slice across the polished surface. The interior layers subtly separate and deform with micro-fractures, fine crumbs, and tiny crystal particles settling naturally. Motion is slow, controlled, and physically accurate. Camera performs a very gentle stabilized forward push-in, staying tightly focused on the blade-to-stone contact. Cool neutral studio lighting, dark background, shallow depth of field, extreme macro detail, high micro-contrast. Calm, satisfying ASMR mood with muted metallic scraping and soft granular sounds only. No music. Negative Prompt: cartoon, CGI look, fantasy effects, glowing outlines, exaggerated colors, fast motion, camera shake, morphing shapes, melting textures, unrealistic fractures, sparks, explosions, blur, low resolution, noise, watermark, text, subtitles, extra objects, extra hands, deformed knife, changing stone shape, background movement.