Magnetite Project (South Africa)
The magnetite project is located in the Limpopo Province of South Africa. The project is centred around the Rhenosterkoppies Greenstone Belt (RGB), an ancient early Proterozoic crust.
The magnetite project is located in the Limpopo Province of South Africa. The project is centred around the Rhenosterkoppies Greenstone Belt (RGB), an ancient early Proterozoic crust. The belt represents an important occurrence of iron mineralisation, in particular magnetite. Some historical regional-scale mapping exploration work was performed in the late 1990s, however in general, very limited geological information was available.
Minrom has been actively involved in the project since its acquisition and has planned, managed and executed two (2) successful phases of exploration to date. Minrom carried out a Phase 1 Non-invasive programme consisting of detailed outcrop mapping of the mineralised units and the extraction of several surface samples. The sample analysis results indicated excellent magnetite mineralisation, with negligible penalty elements in the mineralogical composition.
Figure 1: Minrom's Phase 2 drilling programme underway
Given the success and promising results of Phase 1, Minrom implemented a subsequent Phase 2 Exploration programme consisting of 1200 metres of diamond core drilling. The drilling programme ran from August to October 2019, with the completion of 12 drill holes.
The drilling was planned to target and quantify the lateral and vertical continuity of the mineralised body. Minrom identified three (3) major units containing the target metamorphosed banded ironstone (Meta-BIS) - or correctly termed “Itabirite’’. The units show fine-scale pervasive interlayering of magnetite, hematite and quartz.
A combined total of over 320 samples of the drilled mineralisation were extracted and sent for analysis to determine the major and minor elemental concentrations and magnetite content. Minrom is currently awaiting these results in the interim.
Minrom is currently compiling a detailed geological report on the exploration phases thus far, with the outcome of declaring a JORC compliant initial resource statement.
Figure 2: Core photograph of the metamoprhsed banded ironstone (BIS) or “itabirite”
Figure 3: Drill core for the Project
Minrom has built the project from the ground up, but it is not over yet. The next phase of exploration is being developed in which definition drilling and resource upgrade is planned, along with a bulk sample and metallurgical testing.
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