Kenidjack Arsenic Works - (Boswedden Mine)

Tin produced in Cornish mines frequently contained arsenic and sulphur. These elements were detrimental to smelted tin and therefore had to be removed by roasting - this was done in burning houses or calciners , the vapour given off condensed on the walls of long stone tunnels called labyrinths.
The miners then scraped the deposits of the chamber walls , the chimney releasing the remaining fumes.
Ref:
3507
Date:
2016-06-23 00:00:00.0
Location:
SW 3558 3273
Photographer:

Kenidjack Arsenic Works - (Boswedden Mine)

Tin produced in Cornish mines frequently contained arsenic and sulphur. These elements were detrimental to smelted tin and therefore had to be removed by roasting - this was done in burning houses or calciners , the vapour given off condensed on the walls of long stone tunnels called labyrinths.
The miners then scraped the deposits of the chamber walls , the chimney releasing the remaining fumes.
Ref:
3507
Date:
2016-06-23 00:00:00.0
Location:
SW 3558 3273
Photographer: