Check out this amazing Amethyst and Blue Agate Geode Skull (made of polished agate and amethyst). This amazing skull is about the size of a real human skull. Agates are among the oldest and most precious crystals of the world, what the price of $1,560 certainly justifies.
A wide range of such amazing Crystal Skulls you can find here: skullis.com
Agates are one of the oldest good luck stones and they help to keep a better physical and emotional balance. They enable the person wearing them to choose their friends carefully. Agate is a protector of children. This stone helps us to have patience, allows for inner peace and balances emotions.