A rumour on social media brought dozens of fortune seekers to a field on the outskirts of mining town Springs A rumour on social media brought dozens of fortune seekers to a field on the outskirts of mining town Springs I n a township 30 miles east of Johannesburg, a mechanical digger filled in holes in the dark brown earth, bringing to an end a brief but intense gold rush that saw dozens of fortune seekers descend on what was once a cattle field. Less than two weeks ago, a rumour spread like