Compounds

The compounds are the concrete-shaped items that can be built in the [|Craft Bench]] for example, Concrete. compounds like Silica can be unlocked in the MAM but advanced compounds can be built. building silica with the Constructor using Raw Quartz is the way to build this weird non-building compound. Raw Quartz can be used to many compounds and many equipment for example, Blade Runners and shatter rebar with Quartz Crystal, another compound. 
Note: Copper Powder is used as a non-building compound.
Concrete is a building compound, by the icon of 3 bricks which are building bricks. Concrete can be used to build Foundations, Conveyor Belts, and Walls. its also used to complete a Milestone in tier 1. 
Silica is a non-building compound, unlocked in the quartz research Using 20 Raw Quartz. its a non-building compound because its icon. but also it can build Shatter rebar and Blade Runners. 
Copper Powder can be a non-building compound but its work is important in Tier 8. it is made with Copper Ingot in the Constructor, its job is not dangerous for the Pioneer if it has the Hazmat Suit . Copper Powder makes Nuclear Pasta. 
Compacted Coal can be used as Fuel for the Coal Generator. its also a Sulfuric kind of Coal that is more advanced in Power. Compacted Coal is a non-building compound. 
Raw Quartz makes 2 tipes of compounds. the Concrete kind and the scrap kind. the Silica is also a only equipment used compound, unlike Quartz Crystals, those are made for shatter rebars (equipment) but also its job is building Crystal Oscillator, which makes Pulse Nobelisk . 
The Iron Plate and the assambler part Reinforced Iron Plate also work in conveyor belts and in Foundations, But the assambler part works for more advanced parts. 
The Copper Powder may be a non-building compound but it works in the Particle Accelerator. In compounds the Sulfur does a great job, because the Compacted Coal is a compound.