
Empire bonuses primarily benefit ships. More likely to be found on Class I and II planets than elsewhere. Technically known as "gems and minerals". Mercurite, Void Stone, Jadonyx, Ionic Crystals. Empire bonuses primarily benefit star systems. Much more likely to be found on Class I and II planets than elsewhere. Technically known in Endless Space as "animalia". Redsang, Bluecap Mold, Dustwater, Hydromiel. The luxury resources are divided into four types. The exception is when there are so many strategic resources that they "crowd out" luxury resources. A resource monopoly then always corresponds to a majority possession of that resource. Testing suggests that under most conditions there are always a total 7 of each luxury resource in the galaxy, distributed across 4 planets.
The number of types of luxury resources in existence depends on the galaxy size and the galaxy resource setting: Luxury resources have more varied effects than strategic resources. If you have 4 or more of a strategic resource, you have a monopoly. Unless the system is blockaded, the luxury resource (but not its planet effects) is shared with the rest of the empire. Luxury resources also boost the FIDS output of the planet depending on the resource.
You can access the luxury resource by having the corresponding technology and colonizing the planet. Luxury resources are found on planets in quantities of 1-3. As opposed to FIDS, luxury resources are not consumed.