Materials
The Composition group gives you the amount of minerals that you would get with a perfect refine (no waste).
If you add the waste factor (10% in this example), it gives you the amount needed to manufacture it with perfect skills (Production Efficiency level 5) with a non researched blueprint (Material Efficiency 0).
For reaction types, you can see the materials required and the items produced.
You can click on a material type to open its "Show Info" window.
