Report summary:

The purpose of the test was to ascertain the nature of the gold ore that was sent to the sample. To this end, we conducted a total of sample multi-element, gold phase analysis, electron probe scanning and spectral analysis, sheet transmission microscopy and light sheet reflected light microscopic detailed identification, mineral composition and content detection analysis, mineral dissociation measurement, microscope color A sanding sheet, a sand sheet, an electric lens for electron probe analysis, and the like for testing and analysis are photographed and ground. The sample detection, analysis, the gold concentrates containing gold 21.8g / t, the gold concentrate genus hydrothermal ore raw quartz, carbonate, pyrite type gold ore, gold concentrate containing a small amount of galena ore, sphalerite mineral and trace brass, very fine crystals, and even students wrapped disseminated complex relationship, more adequate solution with the main gangue minerals from the gold-bearing ore and sorting has not been reached, and at a high power microscope No gold particles were observed in the electron probe scanning, indicating that gold is mainly present in ultra-microscopic gold in this sample, which will bring certain difficulties to the extraction of gold concentrate. From the study of the nature of gold fine powder, the gold ore is a difficult ore dressing , and its main features are fine grain size and many types of packages.

The results of phase analysis revealed that 24% of the natural gold in the sample had been substantially dissociated, and 76% of the gold was present in other minerals, which would affect the recovery of gold concentrate leaching. There are particulate pyrite in the sample, which is densely packed in dolomite and quartz mineral crystals. Therefore, it is difficult to achieve a dissociation degree of more than 95% in production.

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