Comparison of quality assurance and quality control processes, highlighting that QA is a one-step review by an outside team occurring once before submission to correct issues, while QC is a multi-step ongoing process throughout a project addressing issues as they arise.

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Diagram titled 'The Mineral Resource Estimate' showing a flow from 'Resource' to 'Reserve' with categories 'Inferred,' 'Indicated,' and 'Measured,' and their connection to 'Probable' and 'Proven' reserves, alongside arrows indicating 'Geological Confidence' and 'Economic Confidence.'
3D terrain model with colored polygons and vertical bars on a black background.
Cover page of a publication titled 'SAMCode: The South African Mineral Codes,' with a logo of a mineral and tools, and text about editions and amendments, set on a red background with black and orange stripes.
Cover page of the 2012 edition of the JORC Code, governing standards for reporting exploration results, mineral resources, and ore reserves, with logos of Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves, and The Minerals Institute.