Iridescent Bismuth Crystal in Vaulted Atrium

Honey-colored light from a high window washes over a bismuth crystal displaying stepped, rainbow-hued terraces. The geometric staircases of the mineral glow with concentric bands of violet, blue, and gold against the cool gray stone floor of the atrium. Soft shadows stretch across the ground, mirroring the crystal's sharp angles in muted reflections. The surrounding space remains vast and empty, showing the object's intricate, self-similar structure. At the turn of seasons, the low sun casts a warm, directional glow that highlights the metallic sheen and the precise, angular edges of the mineral formation.