Each asteroid is classified by its spectral type of which there are 11 total made up of four base types, C, S, M, and I. Each base type includes a set of distinct raw materials. Multispectral asteroids, or those with multiple base types (i.e. Cis, Cms), include a variable composition of their underlying base types.
The carbonaceous asteroids include volatile and organic materials which primarily allow for the production of finished goods that maintain life, construction materials, and polymers:
The stony asteroids include materials from the metal, rare earth, and fissile categories allowing for production of structural materials, construction materials, energy storage and energy production goods:
The metal asteroids include materials from the metal and fissile categories allowing for production of structural and construction materials and energy production goods:
The icy asteroids include materials from the volatile category which primarily allow for the production of propellant, fuel, solvents, and life supporting goods:
Raw materials are classified into one of five categories, with each asteroid having the possibility of gaining bonuses to the yield of each. Additionally, overall yield bonuses of 3%, 6%, or 15% can apply. The following is a complete list of raw materials:
Volatile materials may be modified by a 10%, 20%, or 50% bonus to yield.
Organic materials may be modified by a 10%, 20%, or 50% bonus to yield.
Metal materials may be modified by a 10%, 20%, or 50% bonus to yield.
Rare earth materials may be modified by a 30% bonus to yield.
Fissile materials may be modified by a 30% bonus to yield.
Refined materials (including some raw materials which can be refined from other raw materials) are produced via Refineries, and require the inclusion of refining modules. Refining modules define the inputs, outputs and their proportions. There are a large number of refined materials, with a small selection categorized as follows:
Finished goods are typically produced by Factories and include consumables, the inputs into shipyards for the production of ships, and building construction materials. Some examples of finished goods are as follows: