A large ashtray made of pure Crystal.

Specifications:

Units: metric;

Dimensions:

Outer diameter: 14 cm;
Inner diameter: 12 cm;
Height: 4 cm.

Materials: PBR Crystal pure procedural (no textures used) material based on Principled shader, thus widely compatible with modern PBR renderers. Real world Crystal's Index of Refraction used.

UV map unwrapped, bump texture resolution: 4096x4096.

HDRi environment map (Blue Grotto, public domain) packed in .blend for more realistic reflections, as well as put into supporting items separately.

All imagery is done via Cycles / Filmic (Base Contrast profile), no post-processing.