This NFT represents a real gemstone.

Smoky quartz is a translucent variety of quartz that ranges in clarity from almost complete transparency to almost-opaque brownish-grey or black crystals. This colour is produced when natural radiation, emitted from the surrounding rock, activates colour centres around aluminium impurities within the crystalline quartz. In recent times Smoky quartz has become a popular gemstone, especially for jewellery. The image you see here is of the real quartz.