Polished Thunder Egg Flat Rate - Lucky Strike Priday Variety - Oregon Spider Jasper but the most accepted theory

but the most accepted theory is that they are coprolites and intestinal casts from Predatory Sea Worms

Beautiful multicolor orb patterning

Coprolite is a form of Fossil Poop

but can sometimes contain other colors

Polished Thunder Egg Flat Rate - Lucky Strike Priday Variety - Oregon Spider Jasper but the most accepted theoryPolished Thunder Egg Flat Rate Lucky Strike Priday Variety Oregon This excellent flat rate box contains mostly polished thundereggs showing great pattern and variety. The majority are Lucky Strike thundereggs, though some Priday eggs are included such as the moss bed and blue bed varieties. These are old stock thundereggs from the renowned Oregon deposits. There are some that are not polished. SPECIFICATIONS Material: Natural Oregon Thundereggs