Ann: Mt Gordon Niobium Update, page-10

not a Geo-expert but my AI friend told me this...

If nearby drilling has found columbite, it increases the likelihood that this mineral is associated with the niobium anomaly being investigated through geophysics. Columbite is an ore mineral of niobium (and tantalum) and is commonly found in pegmatites and other igneous rock formations, such as alkaline igneous complexes, where niobium deposits are often located.

Factors Supporting Columbite as the Source of the Anomaly:

1. Mineralogical Association: Columbite is one of the primary niobium-bearing minerals. If columbite has been found in nearby drill holes, it is highly likely that the niobium anomaly detected in the geophysical survey is related to the presence of columbite, suggesting it could be a primary source of the niobium.

2. Geological Consistency: The occurrence of columbite aligns well with the typical geological settings where niobium is found. These settings often include carbonatites, granites, and pegmatites, which can also contain other niobium-bearing minerals like pyrochlore and titanite.

3. Proximity of Drilling Results: The fact that columbite has been found in nearby drill holes strengthens the correlation. The spatial proximity suggests that the detected anomaly might be directly related to zones where columbite is present, indicating that these areas could be part of a broader niobium mineralized system.

Other Considerations:

• Geochemical Data: If geochemical assays from soil or rock samples also show elevated niobium levels, this would further support the presence of niobium mineralization linked to columbite.

• Geophysical Correlation: The specific type of geophysical anomaly (e.g., magnetic, radiometric) should correlate with the expected properties of columbite-bearing rocks. For example, columbite often occurs in magnetically anomalous zones due to the presence of associated magnetite.

• Further Drilling and Sampling: Additional drilling and sampling are needed to confirm the extent and continuity of the niobium mineralization. This would provide more definitive evidence of columbite being the primary source.

Conclusion:

While the presence of columbite in nearby drilling is a strong indicator that it may be the source of the niobium anomaly, a comprehensive understanding requires integrating geophysical, geochemical, and geological data. The chance that columbite is the source of the anomaly is significant, but further exploration and analysis are necessary to confirm this hypothesis and to assess the economic viability of the niobium deposit.