Chalcedony Vein

 is a type of Mining resource in the Caldera region in Outward, requiring a Mining Pick or equivalent item.

Locations

 * 6x Caldera
 * 2x Steam Bath Tunnels
 * 9x The Grotto of Chalcedony
 * 3x The Vault of Stone
 * 1x Old Sirocco
 * 4x New Sirocco Mines