copper crystal 3d model

stylized low-poly / mid-poly 3D game asset, dark graphite-blue stone, soft bevels, premium Unity URP game art, readable silhouette from a high-angle top-down camera, isolated objects, neutral dark-gray studio background, no text, no UI, no logo, no watermark, no characters unless requested Create exactly four separate 3D game assets for a stylized underground mine: one dark rock base for a copper ore vein embedded in a cave wall, one large glowing orange copper crystal, one medium copper crystal, one small copper shard. The rock base is graphite-blue; crystals are vivid warm orange with subtle emissive glow and faceted low-poly shapes. Keep every object separate and clearly visible, no miner, no floor, no machines, no text, no UI.