Title: Tin ore mining in Dutch East Indies Date Created/Published: 1942. Medium: 1 photographic print, two images. Summary: Photograph shows tin mining methods on the island of Singkep, Indonesia. The top image shows a hydraulic dredge working in a swamp and bottom image shows placer mining in a tin .
The flow sheet of alluvial tin ore is usually very easy with simple screening and gravity separation involved to get high grade tin concentrate. For alluvial tin of low single separation degree, ore milling and further gravity separation will be needed after screening and gravity separation to guarantee the concentrate grade and recovery of the whole tin beneficiation processing line.