Add spaces: lightbrownmanmadecrystalcoloredglazebracelet

Answer: light brown manmade crystal colored glaze bracelet

Add spaces: Lesionscanbecausedbystrokes,orbytumorslocatednearthesenerves.

Answer: Lesions can be caused by strokes, or by tumors located near these nerves.

Add spaces: Inadditionthereweredozensofsmallersatellitecampsdevotedtothewareconomy.

Answer:
In addition there were dozens of smaller satellite camps devoted to the war economy.