Gems (Civ3)

Gems are luxury resources that make content people happy in cities that are connected to them by a trade route, and can also be traded to other civilizations. Gems can be found in Mountains and Jungles and generate an extra 4 commerce on their squares.
Building a Marketplace in a connected city enhances the happiness bonus provided by Gems and other luxury resources.
==Civilopedia entry==
Category:Luxury resources (Civ3)