The Kivimaa ore vein in Northern Finland is located in a shear zone in a folded greenstone bed. The vein is c. 350 metres in length and varies from 1 to 6 metres in thickness. https://www.jmannino.com/great-save-Camiseta-Groves-de-corte-ajustado-con-ribete-de-algod-n-org-nico-Saxe-super-grab/