feldspar, kaolin, apatite, garnet sand, mica, calcite, and dolomite. Even though lots of mining …
[引用][C] Critical evaluation of most suitable underground mining method for Kahatagaha underground graphite mine-a case study
E Ekanayake, TMW Bandara - 2023 - Department of Earth Resources …
[引用][C] A study of underground and surface mining methods in Sri Lanka and its suitability assessment
T Thanujan, K Brinthan, S Shivadhahini… - 2021 - Department of Earth Resources …