In Lords Mobile Stone Harvesting research increases the production rate of all your quarries. It is found in the economics tree.
There are 10 levels in total and once maxed you will have boosted your stone production rate by 80%. You need to have researched food harvesting before you can unlock stone harvesting.
The table below has the resource cost and time to upgrade each level. It also shows the might and rewards granted. You can find out your own research time by using our research calculator.
Stone Harvesting Research Requirements
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