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Department of Mines, Industry Regulation and Safety

Nb content in parts per million (ppm) for granitic rock, derived from the GSWA geochemistry database (WACHEM).

Legend

Range (ppm)

Classification

Nb ppm granitic rock SOURCE

0.1 – 10.0

Manual breaks

 

10.0 – 33.6

Manual breaks

 

33.6 – 173.4

Manual breaks

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