From Lucky Strike Mine in Oregon, this thunder egg has a 4-point star, with a dark gray-blue and brown agate center. It measures 3-3/4″ x 3-1/4″ x 2″. It is highly polished to a mirror finish.
As a *BONUS* we will include our explanation for these very unusual formations.
Shipping is included. All prices are in US dollars. For international shipping please contact us at firstname.lastname@example.org or 206-718-1835.