chemistry coin 3d model

Highly detailed 3D commemorative coin, circular shape, medium thickness, finely ridged edge. Single solid metallic material, silver or light gray resin. Front side: central round-bottom laboratory flask with raised bubbles inside, surrounded by chemistry elements including test tubes in a rack, an Erlenmeyer flask, a pipette with a suspended drop, a DNA double helix along the upper edge, molecular hexagon structures, and a classic atom symbol. Partial periodic table tiles in relief on the right side. Subtle mineral-like abstract shapes at the bottom. Chemical equation ‘CH3CH2OH + O2 → CO2 + H2O’ engraved along the lower rim. Back side: clean and symmetrical design with a large stylized molecular symbol in the center, subtle molecular or hexagonal texture in the background, raised circular border matching the front. All details in low to medium relief, no colors, no text other than the chemical formula, manufacturable solid geometry, suitable for 3D printing, realistic metal or resin finish, orthographic vi