Their camels, sheep, goats, asses, and oxen, are also expressly mentioned by the Greeks, who even indicate a knowledge of the fact that goats were preferred to sheep by the herdsmen of the country.
The mineral treasures of the country appear to have been considerable, though to what extent they were known and made use of in ancient times is open to some question.

Mines of gold, silver, copper, iron, red lead, and orpiment are said to have been actually worked under the Persian kings; and some of the other minerals were so patent and obvious, that we can scarcely suppose them to have been neglected.

Salt abounded in the region in several shapes.

It appeared in some places as rock salt, showing itself in masses of vast size and various colors.

In other places it covered the surface of the ground for miles together with a thick incrustation, and could be gathered at all seasons with little labor.