Sphere Bornholm Gneiss Sweden Glacial Erratic Rock Geschiebe 55mm 235gr

Description

Sphere of Bornholm linear Gneiss,  Sweden
Found as a glacial erratic rock along the coastline in Germany - Ostsee
Perfectly spherical , cut in my own workshop
Size : 55 cm - Weight : 235 grams
Bornholm linear Gneiss is made up of red and yellowish Feldspar and lines of black Biotite
Age : 1.4 - 1.6 billion years - Origin : Bornholm - Find : Ostsee, Germany