2 Words to use with phosphate

The near-centenarian lives near Brooksville, in Hernando County, on a run-down farm that he no longer attempts to tend now that most of his 38 children have deserted the farm for the more lucrative employment of the cities of the phosphate camps.

There are several phosphate-mines in this district, all more or less connected with British enterprise.

2 Words to use with  phosphate