Lithium is literally named after stone. No one ever claimed it is rare.
When an X deposit is found, it means that a place has been found where an unusual concentration of a material in an easy/cheap-to-extract form has been found.
There are thousands of tons of gold in the ocean water. But no one would call the ocean a gold deposit. Because it would require a ton of effort/money to extract a tiny amount of gold from the ocean.
Lithium is literally named after stone. No one ever claimed it is rare.
When an X deposit is found, it means that a place has been found where an unusual concentration of a material in an easy/cheap-to-extract form has been found.
There are thousands of tons of gold in the ocean water. But no one would call the ocean a gold deposit. Because it would require a ton of effort/money to extract a tiny amount of gold from the ocean.