Saturn indicates lead, iron, grains, dead things (hides and skins), and lazy people, servants, lowly people, poor men, renunciation etc.
Saturn indicates hard labor. Saturn is an adhomukha planet. So it denotes all matters kept hidden and in secret, such as mine ores, petrol, oil, coal, iron etc.
Saturn is a karaka for agriculture. For example, if it rules the fourth house and is a significator of profession, one may earn through agriculture.
Saturn is a significator of lands and estates. When it rules the fourth house or is a yogakaraka it gives landed property or business connected with the same.