My question is pretty straightforward, beside earth, what celestial bodies could hold exploitable quantities of lithium-7 and lithium-6?
I understand that lithium is a scarce element in our universe. Suns produce it but also burn it during their lifecycle. Most of it stems from the Big Bang itself. Yet planets like earth can hold reasonable deposits. What about gas or ice giants and what about moons especially with oceans? Is there any evidence of earth like lithium deposits there? If so, how did it get there?
I'd appreciate any hints, since I am running out of obvious search items.
The broader context of my question and hence the connection to world building would be, that I try to estimate the feasibility of a Jetter's Cycle based energy production economy, which would require large amounts of readily available lithium-6.
For the sake of completeness I want to add the following article with some news on lithium deposits in the universe: https://phys.org/news/2021-11-astronomers-ancient-brown-dwarf-lithium.html
According to the findings presented in this article, brown dwarves can house substantial amounts of lithium. Furthermore, there is an illustration which indicates, that also Jupiter has lithium.