The stones illustrated here are from the collection of Sami Amdouni and used with permission.

The stones illustrated here are from the collection of Sami Amdouni and used with permission.

The stones illustrated here are from the collection of Sami Amdouni and used with permission.

The stones illustrated here are from the collection of Sami Amdouni and used with permission.

The stones illustrated here are from the collection of Sami Amdouni and used with permission.

The stones illustrated here are from the collection of Sami Amdouni and used with permission.