Further down on the page, it says:

> The mine sets a chemical-grade specifications benchmark of 6.0% Li2O minimum and 0.8% Fe2O3 maximum.

Spodumene is 0% iron. How much lithium does it contain on a Li2O basis? 8%, I think:

   You have: lithium + aluminum + 2(silicon + 3 oxygen)                            
   You want:                                              
   Definition: 186.089            
   You have: (2 lithium + oxygen) / 2 _
   You want: %
        * 8.0282762
        / 0.12455974

No, as it turns out. The paper linked just before that says that none of the rock is quite that lithium-rich https://pubs.geoscienceworld.org/segweb/economicgeology/arti...:

> The lithium ore zones comprise mainly spodumene, apatite, and quartz, with some ore zones returning upward of 5 percent Li2O.

OTOH, that paper is from 01995, so maybe there are new findings since 30 years ago. It says the reserves there were 4% Li2O. Later in the paper, it explains:

> The hanging-wall lithium zone in the main pegmatite is generally richer (up to 5% Li2O, equivalent to 60–80% spodumene) than the footwall lithium zone

That seems to contradict adrian_b's strong statement:

> Spodumene is dispersed among other minerals into rocks and it only forms a few percent at most of those rocks, if not only fractions of a percent.

It could still be true at other mines.