Hyper-realistic macro ASMR video of a translucent ruby glass apple being sliced into perfect thin pieces on a black marble board. The razor knife creates crisp crystalline taps before each cut, rainbow caustics scatter across the surface, and tiny glass flakes sparkle in slow motion. Each slice separates cleanly with a satisfying chime and reveals flawless transparent layers. Minimal studio setup, soft rim light, no text, no logos, 4K satisfying loop aesthetic.