And the priest shall command that one of the birds be killed in an earthen vessel over running water:Leviticus 14:5 KJV
random
Arsenic (Wikipedia)Arsenic is a chemical element with the symbol As and atomic number 33. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. Arsenic is a metalloid. It has various allotropes, but only the grey form, which has a metallic appearance, is important to industry.