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
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.
