Tellurium crystals will not kill you, but they can certainly make you unpopular. If you were so foolish as to eat a practically invisible piece of these beautiful crystals, you would instantly become social outcasts. After one hour, your breath and your sweat will emit an unpleasant garlic odor. This is the smell of dimethyl tellurium, tellurium compounds, into which it is converted in the human body. The same substance found in onions and garlic. Volunteers who experimentally ate only 15mb (15 thousandths of a gram, the equivalent of a few grains of sugar), smelled after that 8 months!