Caledonia Mining.C (CALVF) Rating Lowered to Hold at Zacks Investment Research: According to Zacks, “Caledonia Mining Corporation PLC is an exploration, development and mining company which focused primarily on Southern Africa. It operates in Blanket Gold Mine, Zimbabwe. Read the full article by here: Johannesburg, South Africa News Submit and get free press releases … [Read more...] about Caledonia Mining.C (CALVF) Rating Lowered to Hold at Zacks Investment Research