Developing a 3D mineral texture quantification method of drill core for geometallurgy

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dc.contributor.authorVoigt, M. J.en_ZA
dc.contributor.authorMiller, J.en_ZA
dc.contributor.authorBbosa, L.en_ZA
dc.contributor.authorGovender, R. A.en_ZA
dc.contributor.authorBradshaw, D.en_ZA
dc.contributor.authorMainza, A.en_ZA
dc.contributor.authorBecker, M.en_ZA
dc.date.accessioned2021-10-11T09:00:21Z
dc.date.available2021-10-11T09:00:21Z
dc.date.issued2019-04
dc.descriptionCITATION: Voigt, M.J. et al. 2019. Developing a 3D mineral texture quantification method of drill core for geometallurgy. Journal of the Southern African Institute of Mining and Metallurgy, 119(4):347-353. doi:10.17159/2411-9717/590/2019
dc.descriptionThe original publication is available at https://www.saimm.co.za/publications/journal-papers
dc.description.abstractMineral texture is a critical factor which controls ore variability and is an important attribute in geometallurgy. In relation to downstream processes, it affects the fracture pattern during breakage, where rock strength is inherently a function of mineral texture. Because of the subjective nature of mineral texture, it has not been easy to quantify, especially in the context of a measurement suitable for use in geometallurgical programmes. The aim of this paper is to present the first steps in developing a 3D mineral texture quantification method for drill core and to assess its sensitivity to differences in rock strength using a case study. The methodology includes classifying the textural information using the 3D grey level co-occurrence matrices (GLCM) and X-ray computed tomography (XCT) coupled method. Rock strength tests were performed using the split Hopkinson pressure bar (SHPB). The case study investigates a heterogeneous polymetallic sulphide deposit and a homogeneous shale subdivided into three ’mineral textural types’. The variability is largely captured by the GLCM matrices, and preliminary trends can be observed where the shale is finer grained and has a higher yield strength in comparison with the coarser grained polymetallic sulphide ore.en_ZA
dc.description.urihttps://www.saimm.co.za/publications/journal-papers
dc.description.versionPublisher’s version
dc.format.extent8 pages : illustrations (some color)en_ZA
dc.identifier.citationVoigt, M.J. et al. 2019. Developing a 3D mineral texture quantification method of drill core for geometallurgy. Journal of the Southern African Institute of Mining and Metallurgy, 119(4):347-353. doi:10.17159/2411-9717/590/2019
dc.identifier.issn2411-9717 (online)
dc.identifier.issn2225-6253 (print)
dc.identifier.otherdoi:10.17159/2411-9717/590/2019
dc.identifier.urihttp://hdl.handle.net/10019.1/123198
dc.language.isoen_ZAen_ZA
dc.publisherSouthern African Institute of Mining and Metallurgy
dc.rights.holderThe Southern African Institute of Mining and Metallurgy
dc.subjectDrill cores -- Analysisen_ZA
dc.subjectMineral texture -- Analysisen_ZA
dc.subjectOre variabilityen_ZA
dc.subjectMinerals -- Classificationen_ZA
dc.titleDeveloping a 3D mineral texture quantification method of drill core for geometallurgyen_ZA
dc.typeArticleen_ZA
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