Sphere Sandstone + Fossil inclusions Schonen Sweden Glacial Erratic Rock 7.3cm

Description

Sphere of Skolithan Sandstone with fossil worm cavities - Schonen,Sweden
Found as a glacial erratic rock along the Ostsee coastline
Perfectly spherical , cut in my own workshop
Size : 7.3 cm - Weight : 512 grams
Skolithan Sanstone 540 My old rock rich in fossils
This specimen shows purple brown tube like structures formed by fossil worms in a sandstone matrix