Iridescent crystal alphabet on black

A high-quality 3D render of an entire alphabet featuring letters constructed from a polished, iridescent crystalline material. Each letter is faceted, creating sharp edges and reflective surfaces that catch light, displaying a spectrum of pearlescent colors against the deep black background. Small, jagged crystal shard embellishments are attached to the corners of many letters, adding a sense of organic complexity to the structured geometric forms. The font style is bold and architectural, with a consistent metallic and mineral aesthetic throughout. The lighting is crisp and highlights the internal refractions of the crystalline structure, giving the letters a luminous, glassy quality. The arrangement is clean and uniform, presented as a grid across the black background, suitable for graphic design projects or high-end title typography.