Approximately 3cm x 3cm pieces. 
Iron Pyrite helps protect against negativity from others and from yourself. It helps shed light upon negative thoughts in order for you to become more conscious of the things you speak to yourself. It helps calm excessive thing and irrational fears.
It brings about vitality and a lust for life, helps you tap into your potential and boosts your spirit. It enhances brain function, memory and allows you to create action and manifestation into your life.