Stone Crane
From Project Rebearth
The Stone Crane is a resource production building that produces 
Stone inside a Quarry. It is a sub-building that must be placed within 20 meters of its parent Quarry, and it can be upgraded to the Improved Stone Crane for significantly higher output.
Overview
[edit]The Stone Crane costs 100 
Wood to construct regardless of biome. Once placed, it produces Stone at biome-dependent rates: +30/day in the Stone Biome, +20/day in the Wood Biome, and +10/day in the Earth Biome. All biomes consume 0.1 
Tools per day. It is not available in the Arctic Biome. The building requires 5 workers to operate.
The Stone Crane can be upgraded to the Improved Stone Crane, which costs 100 
Scrap and raises production to +80/day (Stone), +50/day (Wood), or +20/day (Earth) at a higher Tools consumption of 1.0/day.
