This Chispa pyrite is sold in 11 lb. bags only.  It is the smallest form of Iron Pyrite that we sell, sized at approximately 1/8″ – 1/4″ per piece.

Perfect for mixing with sand for a sluicing operation.

Mini Iron Pyrite-approximately 1/4″ to 1/2″ in size in 11 lb bags at $49.50/bag is also available.