NRS-23719 | Investigation reports [Department of Mines]

This series contains two volumes of investigative reports on ore dressing and metallurgical testing of mining samples from different localities in NSW. The reports recorded the ore samples' origin, weight, and characteristics. Also included are the results of experimental tests consisting of crushing, amalgamation, gravity concentration, cyanidation, and recommendations on how to treat the ore. The front cover of both volumes are fixed with labels from the Mining and geological museum The reports from 1940-1947 contain references to papers, which are prefixed by year. Later typed reports reflect that they were created by the government geologist and co-authored by the curator of the Mining and Geological Museum.

本系列包含两卷调查报告，主题为新南威尔士州（New South Wales）不同区域采矿样本的选矿（ore dressing）与冶金测试（metallurgical testing）。报告详细记录了采矿样本的来源、重量与特性，同时收录了破碎、混汞、重选、氰化法（cyanidation）等实验测试的结果，以及该矿石的处理方案建议。两卷卷宗的封面均粘贴有矿业与地质博物馆（Mining and Geological Museum）的标签。1940年至1947年的报告均附带以年份作为前缀的文献引用。后续的打字版报告显示，相关成果由政府地质学家撰写，并由矿业与地质博物馆馆长联合署名。