Ann: Battery Grade LithiumCarbonate Produced from Sepeda Petalite, page-6

We expected that petalite from Sepeda, being a lithium aluminium silicate similar to spodumene, was likely to work well with conventional processing technologies.

The above process involving calcination, acid baking, leaching and impurity removal is an industry standard, commercially-proven methodology for processing lithium aluminium silicates such as spodumene or petalite into a lithium carbonate and/or a lithium hydroxide product suitable for the battery industry.